10202100120 has 128 divisors (see below), whose sum is σ = 34730726400. Its totient is φ = 2662662528.

The previous prime is 10202100101. The next prime is 10202100143. The reversal of 10202100120 is 2100120201.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49734 + ... + 151253.

It is an arithmetic number, because the mean of its divisors is an integer number (271333800).

Almost surely, 2^10202100120 is an apocalyptic number.

10202100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10202100120 is an abundant number, since it is smaller than the sum of its proper divisors (24528626280).

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

10202100120 is a wasteful number, since it uses less digits than its factorization.

10202100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201054 (or 201044 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10202100120 its reverse (2100120201), we get a palindrome (12302220321).

The spelling of 10202100120 in words is "ten billion, two hundred two million, one hundred thousand, one hundred twenty".