3131222212332 has 18 divisors (see below), whose sum is σ = 7915033925708. Its totient is φ = 1043740737432.

The previous prime is 3131222212271. The next prime is 3131222212333. The reversal of 3131222212332 is 2332122221313.

3131222212332 is a `hidden beast` number, since 3 + 1 + 312 + 2 + 2 + 2 + 12 + 332 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 3131222212296 and 3131222212305.

It is not an unprimeable number, because it can be changed into a prime (3131222212333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43489197358 + ... + 43489197429.

Almost surely, 2^{3131222212332} is an apocalyptic number.

It is an amenable number.

3131222212332 is an abundant number, since it is smaller than the sum of its proper divisors (4783811713376).

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

3131222212332 is a wasteful number, since it uses less digits than its factorization.

3131222212332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86978394797 (or 86978394792 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 3131222212332 its reverse (2332122221313), we get a palindrome (5463344433645).

The spelling of 3131222212332 in words is "three trillion, one hundred thirty-one billion, two hundred twenty-two million, two hundred twelve thousand, three hundred thirty-two".