213220312332 has 24 divisors (see below), whose sum is σ = 501311883072. Its totient is φ = 70530891600.

The previous prime is 213220312309. The next prime is 213220312351. The reversal of 213220312332 is 233213022312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67816594 + ... + 67819737.

It is an arithmetic number, because the mean of its divisors is an integer number (20887995128).

Almost surely, 2^213220312332 is an apocalyptic number.

It is an amenable number.

213220312332 is an abundant number, since it is smaller than the sum of its proper divisors (288091570740).

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

213220312332 is a wasteful number, since it uses less digits than its factorization.

213220312332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135636469 (or 135636467 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 213220312332 its reverse (233213022312), we get a palindrome (446433334644).

The spelling of 213220312332 in words is "two hundred thirteen billion, two hundred twenty million, three hundred twelve thousand, three hundred thirty-two".