21331201312200 has 96 divisors (see below), whose sum is σ = 71213395176000. Its totient is φ = 5250757244160.

The previous prime is 21331201312189. The next prime is 21331201312219. The reversal of 21331201312200 is 221310213312.

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, 1367376900 + ... + 1367392499.

It is an arithmetic number, because the mean of its divisors is an integer number (741806199750).

Almost surely, 2^{21331201312200} is an apocalyptic number.

21331201312200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21331201312200 is an abundant number, since it is smaller than the sum of its proper divisors (49882193863800).

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

21331201312200 is a wasteful number, since it uses less digits than its factorization.

21331201312200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734769431 (or 2734769422 counting only the distinct ones).

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

Adding to 21331201312200 its reverse (221310213312), we get a palindrome (21552511525512).

The spelling of 21331201312200 in words is "twenty-one trillion, three hundred thirty-one billion, two hundred one million, three hundred twelve thousand, two hundred".