21930274631100 has 216 divisors, whose sum is σ = 71445400420464. Its totient is φ = 5186760832000.

The previous prime is 21930274631093. The next prime is 21930274631101. The reversal of 21930274631100 is 113647203912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21930274631101) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5879259 + ... + 8855858.

Almost surely, 2^{21930274631100} is an apocalyptic number.

21930274631100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21930274631100 is an abundant number, since it is smaller than the sum of its proper divisors (49515125789364).

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

21930274631100 is a wasteful number, since it uses less digits than its factorization.

21930274631100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14735197 (or 14735179 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 21930274631100 in words is "twenty-one trillion, nine hundred thirty billion, two hundred seventy-four million, six hundred thirty-one thousand, one hundred".