331222320012 has 24 divisors (see below), whose sum is σ = 772863562800. Its totient is φ = 110405799616.

The previous prime is 331222319983. The next prime is 331222320017. The reversal of 331222320012 is 210023222133.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (331222320017) 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, 855814 + ... + 1181042.

It is an arithmetic number, because the mean of its divisors is an integer number (32202648450).

Almost surely, 2^331222320012 is an apocalyptic number.

It is an amenable number.

331222320012 is an abundant number, since it is smaller than the sum of its proper divisors (441641242788).

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

331222320012 is a wasteful number, since it uses less digits than its factorization.

331222320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410105 (or 410103 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 331222320012 its reverse (210023222133), we get a palindrome (541245542145).

The spelling of 331222320012 in words is "three hundred thirty-one billion, two hundred twenty-two million, three hundred twenty thousand, twelve".