313211312222222 has 32 divisors (see below), whose sum is σ = 471170036401920. Its totient is φ = 156155097309120.

The previous prime is 313211312222219. The next prime is 313211312222239. The reversal of 313211312222222 is 222222213112313.

It is a super-2 number, since 2×313211312222222² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22354665197 + ... + 22354679207.

It is an arithmetic number, because the mean of its divisors is an integer number (14724063637560).

Almost surely, 2^{313211312222222} is an apocalyptic number.

313211312222222 is a deficient number, since it is larger than the sum of its proper divisors (157958724179698).

313211312222222 is a wasteful number, since it uses less digits than its factorization.

313211312222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28328.

The product of its digits is 6912, while the sum is 29.

Adding to 313211312222222 its reverse (222222213112313), we get a palindrome (535433525334535).

The spelling of 313211312222222 in words is "three hundred thirteen trillion, two hundred eleven billion, three hundred twelve million, two hundred twenty-two thousand, two hundred twenty-two".