21002210300 has 18 divisors (see below), whose sum is σ = 45574796568. Its totient is φ = 8400884080.

The previous prime is 21002210293. The next prime is 21002210311. The reversal of 21002210300 is 301220012.

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 5 ways as a sum of consecutive naturals, for example, 105010952 + ... + 105011151.

Almost surely, 2^21002210300 is an apocalyptic number.

21002210300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21002210300 is an abundant number, since it is smaller than the sum of its proper divisors (24572586268).

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

21002210300 is a wasteful number, since it uses less digits than its factorization.

21002210300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210022117 (or 210022110 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 21002210300 its reverse (301220012), we get a palindrome (21303430312).

The spelling of 21002210300 in words is "twenty-one billion, two million, two hundred ten thousand, three hundred".