222165356 has 12 divisors (see below), whose sum is σ = 444330768. Its totient is φ = 95213712.

The previous prime is 222165337. The next prime is 222165379. The reversal of 222165356 is 653561222.

222165356 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3967211 + ... + 3967266.

It is an arithmetic number, because the mean of its divisors is an integer number (37027564).

Almost surely, 2^222165356 is an apocalyptic number.

It is an amenable number.

222165356 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222165356 is a wasteful number, since it uses less digits than its factorization.

222165356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7934488 (or 7934486 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 222165356 is about 14905.2123768835. The cubic root of 222165356 is about 605.6551934779.

It can be divided in two parts, 22216 and 5356, that added together give a palindrome (27572).

The spelling of 222165356 in words is "two hundred twenty-two million, one hundred sixty-five thousand, three hundred fifty-six".