222389747172 has 36 divisors (see below), whose sum is σ = 580285794816. Its totient is φ = 71738627760.

The previous prime is 222389747131. The next prime is 222389747207. The reversal of 222389747172 is 271747983222.

222389747172 is a `hidden beast` number, since 2 + 2 + 23 + 89 + 7 + 471 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99635868 + ... + 99638099.

It is an arithmetic number, because the mean of its divisors is an integer number (16119049856).

Almost surely, 2^222389747172 is an apocalyptic number.

It is an amenable number.

222389747172 is an abundant number, since it is smaller than the sum of its proper divisors (357896047644).

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

222389747172 is a wasteful number, since it uses less digits than its factorization.

222389747172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199274008 (or 199274003 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 54.

The spelling of 222389747172 in words is "two hundred twenty-two billion, three hundred eighty-nine million, seven hundred forty-seven thousand, one hundred seventy-two".