210101202012120 has 32 divisors (see below), whose sum is σ = 630303606036720. Its totient is φ = 56026987203200.

The previous prime is 210101202012109. The next prime is 210101202012151. The reversal of 210101202012120 is 21210202101012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 210101202012120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875421674931 + ... + 875421675170.

Almost surely, 2^{210101202012120} is an apocalyptic number.

210101202012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210101202012120 is an abundant number, since it is smaller than the sum of its proper divisors (420202404024600).

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

210101202012120 is a wasteful number, since it uses less digits than its factorization.

210101202012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750843350115 (or 1750843350111 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210101202012120 its reverse (21210202101012), we get a palindrome (231311404113132).

The spelling of 210101202012120 in words is "two hundred ten trillion, one hundred one billion, two hundred two million, twelve thousand, one hundred twenty".