1. 222 (number)222 is the natural number following 221 and preceding 223. It is a repdigit composite number, and its factorization makes it a sphenic number. It is also a Harshad number. There is no solution to the equation x - φ(x) = 222, making 222 a noncototient. Nor is there, in base 10, an integer that added to the sum of its own digits yields 222, making 222 a self number. Radii at 0° and approximately 222.49° divide a circle in the golden ratio.
Read “222 (number)” on English Wikipedia
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Read “222 (number)” on DBpedia
Read “222 (number)” on English Wikipedia
Read “222” on Japanese Wikipedia
Read “222 (number)” on DBpedia
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