213022232 has 8 divisors (see below), whose sum is σ = 399416700. Its totient is φ = 106511112.

The previous prime is 213022219. The next prime is 213022253. The reversal of 213022232 is 232220312.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 213022232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13313882 + ... + 13313897.

Almost surely, 2^213022232 is an apocalyptic number.

It is an amenable number.

213022232 is a deficient number, since it is larger than the sum of its proper divisors (186394468).

213022232 is a wasteful number, since it uses less digits than its factorization.

213022232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26627785 (or 26627781 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 213022232 is about 14595.2811552227. The cubic root of 213022232 is about 597.2300392822.

Adding to 213022232 its reverse (232220312), we get a palindrome (445242544).

The spelling of 213022232 in words is "two hundred thirteen million, twenty-two thousand, two hundred thirty-two".