21033322300 has 36 divisors (see below), whose sum is σ = 45975494880. Its totient is φ = 8351912320.

The previous prime is 21033322291. The next prime is 21033322393. The reversal of 21033322300 is 322333012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 753940 + ... + 781339.

It is an arithmetic number, because the mean of its divisors is an integer number (1277097080).

Almost surely, 2^21033322300 is an apocalyptic number.

21033322300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21033322300 is an abundant number, since it is smaller than the sum of its proper divisors (24942172580).

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

21033322300 is a wasteful number, since it uses less digits than its factorization.

21033322300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535430 (or 1535423 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 21033322300 its reverse (322333012), we get a palindrome (21355655312).

The spelling of 21033322300 in words is "twenty-one billion, thirty-three million, three hundred twenty-two thousand, three hundred".