21002132132022 has 8 divisors (see below), whose sum is σ = 42004264264056. Its totient is φ = 7000710710672.

The previous prime is 21002132131987. The next prime is 21002132132063. The reversal of 21002132132022 is 22023123120012.

It is a sphenic number, since it is the product of 3 distinct primes.

21002132132022 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 21002132132022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750177677663 + ... + 1750177677674.

It is an arithmetic number, because the mean of its divisors is an integer number (5250533033007).

Almost surely, 2^{21002132132022} is an apocalyptic number.

21002132132022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21002132132022 is a wasteful number, since it uses less digits than its factorization.

21002132132022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500355355342.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21002132132022 its reverse (22023123120012), we get a palindrome (43025255252034).

The spelling of 21002132132022 in words is "twenty-one trillion, two billion, one hundred thirty-two million, one hundred thirty-two thousand, twenty-two".