21202044132 has 24 divisors (see below), whose sum is σ = 49474617696. Its totient is φ = 7066893568.

The previous prime is 21202044089. The next prime is 21202044163. The reversal of 21202044132 is 23144020212.

It is a junction number, because it is equal to n+sod(n) for n = 21202044099 and 21202044108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175603 + ... + 270629.

It is an arithmetic number, because the mean of its divisors is an integer number (2061442404).

Almost surely, 2^21202044132 is an apocalyptic number.

It is an amenable number.

21202044132 is an abundant number, since it is smaller than the sum of its proper divisors (28272573564).

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

21202044132 is a wasteful number, since it uses less digits than its factorization.

21202044132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113627 (or 113625 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 21202044132 its reverse (23144020212), we get a palindrome (44346064344).

The spelling of 21202044132 in words is "twenty-one billion, two hundred two million, forty-four thousand, one hundred thirty-two".