210000100120 has 32 divisors (see below), whose sum is σ = 481415328720. Its totient is φ = 82415132800.

The previous prime is 210000100091. The next prime is 210000100133. The reversal of 210000100120 is 21001000012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49526206 + ... + 49530445.

Almost surely, 2^210000100120 is an apocalyptic number.

210000100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210000100120 is an abundant number, since it is smaller than the sum of its proper divisors (271415228600).

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

210000100120 is a wasteful number, since it uses less digits than its factorization.

210000100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99056715 (or 99056711 counting only the distinct ones).

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

Adding to 210000100120 its reverse (21001000012), we get a palindrome (231001100132).

The spelling of 210000100120 in words is "two hundred ten billion, one hundred thousand, one hundred twenty".