222557868 has 192 divisors, whose sum is σ = 668595200. Its totient is φ = 64245312.

The previous prime is 222557857. The next prime is 222557869. The reversal of 222557868 is 868755222.

Its product of digits (537600) is a multiple of the sum of its prime divisors (140).

It is not an unprimeable number, because it can be changed into a prime (222557869) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2160705 + ... + 2160807.

Almost surely, 2^222557868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222557868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334297600).

222557868 is an abundant number, since it is smaller than the sum of its proper divisors (446037332).

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

222557868 is a wasteful number, since it uses less digits than its factorization.

222557868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 140 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 222557868 is about 14918.3735038375. The cubic root of 222557868 is about 606.0116652984.

The spelling of 222557868 in words is "two hundred twenty-two million, five hundred fifty-seven thousand, eight hundred sixty-eight".