222250172 has 6 divisors (see below), whose sum is σ = 388937808. Its totient is φ = 111125084.

The previous prime is 222250153. The next prime is 222250213. The reversal of 222250172 is 271052222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27781268 + ... + 27781275.

It is an arithmetic number, because the mean of its divisors is an integer number (64822968).

Almost surely, 2^222250172 is an apocalyptic number.

It is an amenable number.

222250172 is a deficient number, since it is larger than the sum of its proper divisors (166687636).

222250172 is a wasteful number, since it uses less digits than its factorization.

222250172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55562547 (or 55562545 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 222250172 is about 14908.0572845693. The cubic root of 222250172 is about 605.7322572712.

The spelling of 222250172 in words is "two hundred twenty-two million, two hundred fifty thousand, one hundred seventy-two".