21002132200004 has 48 divisors (see below), whose sum is σ = 38205995520000. Its totient is φ = 10091114762400.

The previous prime is 21002132199977. The next prime is 21002132200079. The reversal of 21002132200004 is 40000223120012.

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, 10571747 + ... + 12400245.

It is an arithmetic number, because the mean of its divisors is an integer number (795958240000).

Almost surely, 2^{21002132200004} is an apocalyptic number.

It is an amenable number.

21002132200004 is a deficient number, since it is larger than the sum of its proper divisors (17203863319996).

21002132200004 is a wasteful number, since it uses less digits than its factorization.

21002132200004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829184 (or 1829182 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21002132200004 its reverse (40000223120012), we get a palindrome (61002355320016).

The spelling of 21002132200004 in words is "twenty-one trillion, two billion, one hundred thirty-two million, two hundred thousand, four".