21300220300 has 36 divisors (see below), whose sum is σ = 46698009400. Its totient is φ = 8432248320.

The previous prime is 21300220283. The next prime is 21300220303. The reversal of 21300220300 is 302200312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21300220303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1088250 + ... + 1107649.

Almost surely, 2^21300220300 is an apocalyptic number.

21300220300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21300220300 is an abundant number, since it is smaller than the sum of its proper divisors (25397789100).

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

21300220300 is a wasteful number, since it uses less digits than its factorization.

21300220300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196010 (or 2196003 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 21300220300 its reverse (302200312), we get a palindrome (21602420612).

The spelling of 21300220300 in words is "twenty-one billion, three hundred million, two hundred twenty thousand, three hundred".