The 222 (number) reference article from the English Wikipedia on 24-Jul-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

222 (number)

Two hundred twenty-two is the natural number following two hundred twenty-one and preceding two hundred twenty-three. It is a repdigit composite number, and its factorization makes it a sphenic number. It is also a Harshad number.

List of numbers — Integers << 0 100 200 300 400 500 600 700 800 900 >>
Cardinal	Two hundred [and] twenty-two
Ordinal	222nd
Factorization
Roman numeral	CCXXII
Binary	11011110
Hexadecimal	DE

Radii at 0° and approximately 222.49° divide a circle in the golden ratio.

The ratio of the areas B / A equals the golden ratio

The first triple repdigit in the square root of 222 is 222:

√222 =

14.89966442575133971933181604612395114023452166218124

    73380574030119289350747022456370098357196526519656

    52139396484012226637696242316850851449289924...

A prime reciprocal magic square based on 223 in base three has a magic constant of 222.

See also: two hundred

For the year, see 222 AD.

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