213221310232 has 64 divisors (see below), whose sum is σ = 458091809280. Its totient is φ = 91143055872.

The previous prime is 213221310209. The next prime is 213221310257. The reversal of 213221310232 is 232013122312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56212528 + ... + 56216320.

It is an arithmetic number, because the mean of its divisors is an integer number (7157684520).

Almost surely, 2^213221310232 is an apocalyptic number.

It is an amenable number.

213221310232 is an abundant number, since it is smaller than the sum of its proper divisors (244870499048).

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

213221310232 is a wasteful number, since it uses less digits than its factorization.

213221310232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6152 (or 6148 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 213221310232 its reverse (232013122312), we get a palindrome (445234432544).

The spelling of 213221310232 in words is "two hundred thirteen billion, two hundred twenty-one million, three hundred ten thousand, two hundred thirty-two".