21010002119100 has 54 divisors (see below), whose sum is σ = 65854684422800. Its totient is φ = 5602667231520.

The previous prime is 21010002119083. The next prime is 21010002119137. The reversal of 21010002119100 is 191120001012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11672222500 + ... + 11672224299.

Almost surely, 2^{21010002119100} is an apocalyptic number.

21010002119100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21010002119100 is an abundant number, since it is smaller than the sum of its proper divisors (44844682303700).

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

21010002119100 is a wasteful number, since it uses less digits than its factorization.

21010002119100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23344446819 (or 23344446809 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 21010002119100 in words is "twenty-one trillion, ten billion, two million, one hundred nineteen thousand, one hundred".