21132002000000 has 112 divisors (see below), whose sum is σ = 52622969190810. Its totient is φ = 8452800000000.

The previous prime is 21132001999967. The next prime is 21132002000023. The reversal of 21132002000000 is 20023112.

It is a happy number.

It can be written as a sum of positive squares in 7 ways, for example, as 4105551278656 + 17026450721344 = 2026216^2 + 4126312^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3283001 + ... + 7283000.

Almost surely, 2^{21132002000000} is an apocalyptic number.

21132002000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21132002000000 is an abundant number, since it is smaller than the sum of its proper divisors (31490967190810).

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

21132002000000 is an frugal number, since it uses more digits than its factorization.

21132002000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10566045 (or 10566008 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 21132002000000 its reverse (20023112), we get a palindrome (21132022023112).

The spelling of 21132002000000 in words is "twenty-one trillion, one hundred thirty-two billion, two million", and thus it is an aban number.