21202131202 has 48 divisors (see below), whose sum is σ = 37013887872. Its totient is φ = 8921931840.

The previous prime is 21202131199. The next prime is 21202131211. The reversal of 21202131202 is 20213120212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27860502 + ... + 27861262.

It is an arithmetic number, because the mean of its divisors is an integer number (771122664).

Almost surely, 2^21202131202 is an apocalyptic number.

21202131202 is a deficient number, since it is larger than the sum of its proper divisors (15811756670).

21202131202 is a wasteful number, since it uses less digits than its factorization.

21202131202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151 (or 1012 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21202131202 its reverse (20213120212), we get a palindrome (41415251414).

The spelling of 21202131202 in words is "twenty-one billion, two hundred two million, one hundred thirty-one thousand, two hundred two".