22 (number)

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← 21 22 23 →
Cardinal twenty-two
Ordinal 22nd
(twenty-second)
Factorization 2 × 11
Divisors 1, 2, 11, 22
Greek numeral ΚΒ´
Roman numeral XXII
Binary 101102
Ternary 2113
Quaternary 1124
Quinary 425
Senary 346
Octal 268
Duodecimal 1A12
Hexadecimal 1616
Vigesimal 1220
Base 36 M36

22 (twenty-two) is the natural number following 21 and preceding 23.

In mathematics[edit]

When cutting a circle with just six line segments, the maximum number of pieces that can be so created is 22,[3] thus 22 is a central polygonal number (see lazy caterer's sequence).[4]

In physics and chemistry[edit]

In aircraft[edit]

  • 22 is the designation of the USAF stealth fighter, the F-22 Raptor.

In art, entertainment, and media[edit]

In music[edit]

  • "Twenty Two" is a 1997 song by the punk band Millencolin
  • In Jay-Z's song "22 Two's", he rhymes the words: too, to, and two, 22 times in the first verse.
  • "22 Acacia Avenue" is a song by Iron Maiden on the album The Number of the Beast
  • Catch 22 is an album by death metal band Hypocrisy
  • "22" is a song by Lily Allen on the album It's Not Me, It's You.
  • 22 Dreams is a song and album by Paul Weller. The album contains 22 songs on it.
  • The Norwegian electronica project Ugress uses 22 as a recurring theme. All four albums features a track with 22 in the title.
  • "22" is a song by Taylor Swift on her fourth album Red
  • "The Number 22" is a song by Ashbury Heights on the album The Looking Glass Society.
  • 22, A Million is an album by Bon Iver. The first track of the album is called "22 (OVER SOON)".
  • Cubic 22 was a Belgian techno duo.
  • "22" is a song by the English alternative rock band Deaf Havana on their album Old Souls

In other fields[edit]

  • In bingo, 22 is referred to as "Two Little Ducks"
  • Catch-22 (1961), Joseph Heller's novel, and its 1970 film version) by Joseph Heller, adaptation gave rise to the expression of logic "catch-22"
  • Revista 22 is a magazine published in Romania
  • There are 22 stars in the Paramount Pictures logo.
  • "Twenty Two" (February 10, 1961) is Season 2–episode 17 (February 10, 1961) of the 1959-64 TV series The Twilight Zone, in which a hospitalized dancer has nightmares about a sinister nurse inviting her to Room 22, the hospital morgue.
  • Traditional Tarot decks have 22 cards with allegorical subjects. These serve as trump cards in the game. The Fool is usually a kind of wild-card among the trumps and unnumbered, so the highest trump is numbered 21. Occult Tarot decks usually have 22 similar cards which are called Major Arcana by fortune-tellers. Occultists have related this number to the 22 letters of the Hebrew alphabet and the 22 paths in the Kabbalistic Tree of Life.

In computing and technology[edit]

In religion[edit]

In sports[edit]

  • In soccer there are 22 players that start a game and the maximum number of players playing at any time.
  • In Australian rules football, each team is allowed a squad of 22 players (18 on the field and 4 interchanges).
  • The length of a cricket pitch is 22 yards.
  • In rugby union, the "22" is a line in each half of the field which is 22 meters from the respective try line. It has significance in a number of laws particularly relating to kicking the ball away.

In weights and measures[edit]

In other uses[edit]

Twenty-two may also refer to:

See also[edit]

References[edit]

  1. ^ "Sloane's A000326 : Pentagonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31. 
  2. ^ "Sloane's A069099 : Centered heptagonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31. 
  3. ^ Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1986): 31
  4. ^ "Sloane's A000124 : Central polygonal numbers (the Lazy Caterer's sequence)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31. 
  5. ^ "Sloane's A002088 : Sum of totient function". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31. 
  6. ^ "Sloane's A001608 : Perrin sequence". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31. 
  7. ^ "Sloane's A059756 : Erdős-Woods numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31. 
  8. ^ "Sloane's A006753 : Smith numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31. 

External links[edit]