10002100020100 has 36 divisors (see below), whose sum is σ = 21704784308368. Its totient is φ = 4000798116000.

The previous prime is 10002100020089. The next prime is 10002100020149. The reversal of 10002100020100 is 102000120001.

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, 10158595 + ... + 11099605.

Almost surely, 2^{10002100020100} is an apocalyptic number.

10002100020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10002100020100 is an abundant number, since it is smaller than the sum of its proper divisors (11702684288268).

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

10002100020100 is a wasteful number, since it uses less digits than its factorization.

10002100020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047316 (or 1047309 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 10002100020100 its reverse (102000120001), we get a palindrome (10104100140101).

Subtracting from 10002100020100 its reverse (102000120001), we obtain a palindrome (9900099900099).

The spelling of 10002100020100 in words is "ten trillion, two billion, one hundred million, twenty thousand, one hundred".