331313222 has 16 divisors (see below), whose sum is σ = 523705200. Its totient is φ = 156764160.

The previous prime is 331313219. The next prime is 331313231. The reversal of 331313222 is 222313133.

It is a junction number, because it is equal to n+sod(n) for n = 331313194 and 331313203.

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, 34022 + ... + 42662.

It is an arithmetic number, because the mean of its divisors is an integer number (32731575).

Almost surely, 2^331313222 is an apocalyptic number.

331313222 is a deficient number, since it is larger than the sum of its proper divisors (192391978).

331313222 is a wasteful number, since it uses less digits than its factorization.

331313222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9671.

The product of its digits is 648, while the sum is 20.

The square root of 331313222 is about 18202.0114822511. The cubic root of 331313222 is about 691.9577683138.

Adding to 331313222 its reverse (222313133), we get a palindrome (553626355).

The spelling of 331313222 in words is "three hundred thirty-one million, three hundred thirteen thousand, two hundred twenty-two".