222267172 has 12 divisors (see below), whose sum is σ = 398013616. Its totient is φ = 108549000.

The previous prime is 222267169. The next prime is 222267181. The reversal of 222267172 is 271762222.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 645954 + ... + 646297.

Almost surely, 2^222267172 is an apocalyptic number.

It is an amenable number.

222267172 is a deficient number, since it is larger than the sum of its proper divisors (175746444).

222267172 is a wasteful number, since it uses less digits than its factorization.

222267172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292298 (or 1292296 counting only the distinct ones).

The product of its digits is 9408, while the sum is 31.

The square root of 222267172 is about 14908.6274351464. The cubic root of 222267172 is about 605.7477011075.

The spelling of 222267172 in words is "two hundred twenty-two million, two hundred sixty-seven thousand, one hundred seventy-two".