320213222 has 24 divisors (see below), whose sum is σ = 573854736. Its totient is φ = 131264496.

The previous prime is 320213197. The next prime is 320213261. The reversal of 320213222 is 222312023.

It is a self number, because there is not a number n which added to its sum of digits gives 320213222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14213 + ... + 29024.

It is an arithmetic number, because the mean of its divisors is an integer number (23910614).

Almost surely, 2^320213222 is an apocalyptic number.

320213222 is a deficient number, since it is larger than the sum of its proper divisors (253641514).

320213222 is a wasteful number, since it uses less digits than its factorization.

320213222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43292 (or 43269 counting only the distinct ones).

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

The square root of 320213222 is about 17894.5025636367. The cubic root of 320213222 is about 684.1422634791.

Adding to 320213222 its reverse (222312023), we get a palindrome (542525245).

The spelling of 320213222 in words is "three hundred twenty million, two hundred thirteen thousand, two hundred twenty-two".