213022912 has 28 divisors (see below), whose sum is σ = 434146960. Its totient is φ = 103631616.

The previous prime is 213022897. The next prime is 213022913. The reversal of 213022912 is 219220312.

It is a super-2 number, since 2×213022912² = 90757522073919488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213022913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42612 + ... + 47347.

Almost surely, 2^213022912 is an apocalyptic number.

It is an amenable number.

213022912 is an abundant number, since it is smaller than the sum of its proper divisors (221124048).

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

213022912 is an equidigital number, since it uses as much as digits as its factorization.

213022912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90008 (or 89998 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 213022912 is about 14595.3044504046. The cubic root of 213022912 is about 597.2306747651.

The spelling of 213022912 in words is "two hundred thirteen million, twenty-two thousand, nine hundred twelve".