13031221321200 has 120 divisors (see below), whose sum is σ = 42530956134768. Its totient is φ = 3409426442240.

The previous prime is 13031221321189. The next prime is 13031221321213. The reversal of 13031221321200 is 212312213031.

13031221321200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102383109 + ... + 102510308.

Almost surely, 2^{13031221321200} is an apocalyptic number.

13031221321200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13031221321200 is an abundant number, since it is smaller than the sum of its proper divisors (29499734813568).

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

13031221321200 is a wasteful number, since it uses less digits than its factorization.

13031221321200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204893491 (or 204893480 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13031221321200 its reverse (212312213031), we get a palindrome (13243533534231).

The spelling of 13031221321200 in words is "thirteen trillion, thirty-one billion, two hundred twenty-one million, three hundred twenty-one thousand, two hundred".