331133211012 has 24 divisors (see below), whose sum is σ = 773018741376. Its totient is φ = 110324225248.

The previous prime is 331133211011. The next prime is 331133211029. The reversal of 331133211012 is 210112331133.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 331133211012.

It is not an unprimeable number, because it can be changed into a prime (331133211011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6663183 + ... + 6712694.

It is an arithmetic number, because the mean of its divisors is an integer number (32209114224).

Almost surely, 2^331133211012 is an apocalyptic number.

It is an amenable number.

331133211012 is an abundant number, since it is smaller than the sum of its proper divisors (441885530364).

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

331133211012 is a wasteful number, since it uses less digits than its factorization.

331133211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13377947 (or 13377945 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 331133211012 its reverse (210112331133), we get a palindrome (541245542145).

The spelling of 331133211012 in words is "three hundred thirty-one billion, one hundred thirty-three million, two hundred eleven thousand, twelve".