331221321013012 has 12 divisors (see below), whose sum is σ = 610144538708320. Its totient is φ = 156894309953496.

The previous prime is 331221321012997. The next prime is 331221321013049. The reversal of 331221321013012 is 210310123122133.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2179087638168 + ... + 2179087638319.

Almost surely, 2^{331221321013012} is an apocalyptic number.

It is an amenable number.

331221321013012 is a deficient number, since it is larger than the sum of its proper divisors (278923217695308).

331221321013012 is a wasteful number, since it uses less digits than its factorization.

331221321013012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4358175276510 (or 4358175276508 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 331221321013012 its reverse (210310123122133), we get a palindrome (541531444135145).

The spelling of 331221321013012 in words is "three hundred thirty-one trillion, two hundred twenty-one billion, three hundred twenty-one million, thirteen thousand, twelve".