21133022300 has 36 divisors (see below), whose sum is σ = 49386250536. Its totient is φ = 7802961600.

The previous prime is 21133022279. The next prime is 21133022353. The reversal of 21133022300 is 322033112.

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, 8126786 + ... + 8129385.

Almost surely, 2^21133022300 is an apocalyptic number.

21133022300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21133022300 is an abundant number, since it is smaller than the sum of its proper divisors (28253228236).

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

21133022300 is a wasteful number, since it uses less digits than its factorization.

21133022300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16256198 (or 16256191 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21133022300 its reverse (322033112), we get a palindrome (21455055412).

The spelling of 21133022300 in words is "twenty-one billion, one hundred thirty-three million, twenty-two thousand, three hundred".