21202130300 has 36 divisors (see below), whose sum is σ = 49547750616. Its totient is φ = 7828478400.

The previous prime is 21202130249. The next prime is 21202130321. The reversal of 21202130300 is 303120212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8153366 + ... + 8155965.

It is an arithmetic number, because the mean of its divisors is an integer number (1376326406).

Almost surely, 2^21202130300 is an apocalyptic number.

21202130300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21202130300 is an abundant number, since it is smaller than the sum of its proper divisors (28345620316).

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

21202130300 is a wasteful number, since it uses less digits than its factorization.

21202130300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16309358 (or 16309351 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 21202130300 its reverse (303120212), we get a palindrome (21505250512).

The spelling of 21202130300 in words is "twenty-one billion, two hundred two million, one hundred thirty thousand, three hundred".