131212222000320 has 56 divisors (see below), whose sum is σ = 416598804854064. Its totient is φ = 34989925866496.

The previous prime is 131212222000243. The next prime is 131212222000333. The reversal of 131212222000320 is 23000222212131.

It is a super-2 number, since 2×131212222000320² (a number of 29 digits) contains 22 as substring.

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, 68339697999 + ... + 68339699918.

It is an arithmetic number, because the mean of its divisors is an integer number (7439264372394).

Almost surely, 2^{131212222000320} is an apocalyptic number.

131212222000320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131212222000320 is an abundant number, since it is smaller than the sum of its proper divisors (285386582853744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131212222000320 is a wasteful number, since it uses less digits than its factorization.

131212222000320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136679397937 (or 136679397927 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 131212222000320 its reverse (23000222212131), we get a palindrome (154212444212451).

The spelling of 131212222000320 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred twenty-two million, three hundred twenty", and thus it is an aban number.