21000201132000 has 96 divisors (see below), whose sum is σ = 68796658947744. Its totient is φ = 5600053632000.

The previous prime is 21000201131989. The next prime is 21000201132011. The reversal of 21000201132000 is 23110200012.

It is an interprime number because it is at equal distance from previous prime (21000201131989) and next prime (21000201132011).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874996381 + ... + 875020380.

It is an arithmetic number, because the mean of its divisors is an integer number (716631864039).

Almost surely, 2^{21000201132000} is an apocalyptic number.

21000201132000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21000201132000 is an abundant number, since it is smaller than the sum of its proper divisors (47796457815744).

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

21000201132000 is a wasteful number, since it uses less digits than its factorization.

21000201132000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750016789 (or 1750016771 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 21000201132000 its reverse (23110200012), we get a palindrome (21023311332012).

The spelling of 21000201132000 in words is "twenty-one trillion, two hundred one million, one hundred thirty-two thousand".