21331132003200 has 192 divisors, whose sum is σ = 71105917680000. Its totient is φ = 5619767900160.

The previous prime is 21331132003163. The next prime is 21331132003219. The reversal of 21331132003200 is 230023113312.

It is a tau number, because it is divible by the number of its divisors (192).

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, 12588700 + ... + 14182299.

It is an arithmetic number, because the mean of its divisors is an integer number (370343321250).

Almost surely, 2^{21331132003200} is an apocalyptic number.

21331132003200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21331132003200 is an abundant number, since it is smaller than the sum of its proper divisors (49774785676800).

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

21331132003200 is a wasteful number, since it uses less digits than its factorization.

21331132003200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26771109 (or 26771092 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21331132003200 its reverse (230023113312), we get a palindrome (21561155116512).

The spelling of 21331132003200 in words is "twenty-one trillion, three hundred thirty-one billion, one hundred thirty-two million, three thousand, two hundred".