222512920 has 96 divisors (see below), whose sum is σ = 588390480. Its totient is φ = 75505920.

The previous prime is 222512869. The next prime is 222512929. The reversal of 222512920 is 29215222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222512929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209190 + ... + 210250.

Almost surely, 2^222512920 is an apocalyptic number.

222512920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222512920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294195240).

222512920 is an abundant number, since it is smaller than the sum of its proper divisors (365877560).

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

222512920 is a wasteful number, since it uses less digits than its factorization.

222512920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 1182 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 222512920 is about 14916.8669632735. The cubic root of 222512920 is about 605.9708656530.

The spelling of 222512920 in words is "two hundred twenty-two million, five hundred twelve thousand, nine hundred twenty".