313213222 has 16 divisors (see below), whose sum is σ = 537311520. Its totient is φ = 134140608.

The previous prime is 313213207. The next prime is 313213231. The reversal of 313213222 is 222312313.

It is a self number, because there is not a number n which added to its sum of digits gives 313213222.

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, 15354 + ... + 29362.

It is an arithmetic number, because the mean of its divisors is an integer number (33581970).

Almost surely, 2^313213222 is an apocalyptic number.

313213222 is a deficient number, since it is larger than the sum of its proper divisors (224098298).

313213222 is a wasteful number, since it uses less digits than its factorization.

313213222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15615.

The product of its digits is 432, while the sum is 19.

The square root of 313213222 is about 17697.8309970459. The cubic root of 313213222 is about 679.1202738523.

Adding to 313213222 its reverse (222312313), we get a palindrome (535525535).

Subtracting from 313213222 its reverse (222312313), we obtain a palindrome (90900909).

It can be divided in two parts, 31321 and 3222, that added together give a palindrome (34543).

The spelling of 313213222 in words is "three hundred thirteen million, two hundred thirteen thousand, two hundred twenty-two".