21301003021100 has 72 divisors (see below), whose sum is σ = 50470188742848. Its totient is φ = 7738921396800.

The previous prime is 21301003021079. The next prime is 21301003021159. The reversal of 21301003021100 is 112030010312.

It is a super-2 number, since 2×21301003021100² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7386494 + ... + 9857093.

Almost surely, 2^{21301003021100} is an apocalyptic number.

21301003021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21301003021100 is an abundant number, since it is smaller than the sum of its proper divisors (29169185721748).

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

21301003021100 is a wasteful number, since it uses less digits than its factorization.

21301003021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17244735 (or 17244728 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21301003021100 its reverse (112030010312), we get a palindrome (21413033031412).

The spelling of 21301003021100 in words is "twenty-one trillion, three hundred one billion, three million, twenty-one thousand, one hundred".