3131212102122 has 64 divisors (see below), whose sum is σ = 7044580005120. Its totient is φ = 920616981504.

The previous prime is 3131212102061. The next prime is 3131212102147. The reversal of 3131212102122 is 2212012121313.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 859504 + ... + 2645972.

It is an arithmetic number, because the mean of its divisors is an integer number (110071562580).

Almost surely, 2^{3131212102122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3131212102122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3522290002560).

3131212102122 is an abundant number, since it is smaller than the sum of its proper divisors (3913367902998).

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

3131212102122 is a wasteful number, since it uses less digits than its factorization.

3131212102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787487.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 3131212102122 its reverse (2212012121313), we get a palindrome (5343224223435).

The spelling of 3131212102122 in words is "three trillion, one hundred thirty-one billion, two hundred twelve million, one hundred two thousand, one hundred twenty-two".