222499872 has 120 divisors (see below), whose sum is σ = 747907776. Its totient is φ = 63566208.

The previous prime is 222499867. The next prime is 222499873. The reversal of 222499872 is 278994222.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (222499873) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12013 + ... + 24275.

Almost surely, 2^222499872 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 222499872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373953888).

222499872 is an abundant number, since it is smaller than the sum of its proper divisors (525407904).

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

222499872 is a wasteful number, since it uses less digits than its factorization.

222499872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12292 (or 12275 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 222499872 is about 14916.4295996059. The cubic root of 222499872 is about 605.9590208541.

The spelling of 222499872 in words is "two hundred twenty-two million, four hundred ninety-nine thousand, eight hundred seventy-two".