21202110102200 has 48 divisors (see below), whose sum is σ = 49782974411160. Its totient is φ = 8396875280000.

The previous prime is 21202110102181. The next prime is 21202110102233. The reversal of 21202110102200 is 220101120212.

It is a super-2 number, since 2×21202110102200² (a number of 27 digits) contains 22 as substring.

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, 524784506 + ... + 524824905.

Almost surely, 2^{21202110102200} is an apocalyptic number.

21202110102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21202110102200 is an abundant number, since it is smaller than the sum of its proper divisors (28580864308960).

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

21202110102200 is a wasteful number, since it uses less digits than its factorization.

21202110102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049609528 (or 1049609519 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21202110102200 its reverse (220101120212), we get a palindrome (21422211222412).

The spelling of 21202110102200 in words is "twenty-one trillion, two hundred two billion, one hundred ten million, one hundred two thousand, two hundred".