213222332 has 24 divisors (see below), whose sum is σ = 395888640. Its totient is φ = 100200240.

The previous prime is 213222329. The next prime is 213222367. The reversal of 213222332 is 233222312.

It is a congruent number.

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, 1394 + ... + 20697.

It is an arithmetic number, because the mean of its divisors is an integer number (16495360).

Almost surely, 2^213222332 is an apocalyptic number.

It is an amenable number.

213222332 is a deficient number, since it is larger than the sum of its proper divisors (182666308).

213222332 is a wasteful number, since it uses less digits than its factorization.

213222332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22241 (or 22239 counting only the distinct ones).

The product of its digits is 864, while the sum is 20.

The square root of 213222332 is about 14602.1345015035. The cubic root of 213222332 is about 597.4169811653.

Subtracting from 213222332 its sum of digits (20), we obtain a palindrome (213222312).

Adding to 213222332 its reverse (233222312), we get a palindrome (446444644).

The spelling of 213222332 in words is "two hundred thirteen million, two hundred twenty-two thousand, three hundred thirty-two".