202102110100 has 36 divisors (see below), whose sum is σ = 478430815968. Its totient is φ = 73491676000.

The previous prime is 202102110073. The next prime is 202102110101. The reversal of 202102110100 is 1011201202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202102110101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91863496 + ... + 91865695.

It is an arithmetic number, because the mean of its divisors is an integer number (13289744888).

Almost surely, 2^202102110100 is an apocalyptic number.

202102110100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202102110100 is an abundant number, since it is smaller than the sum of its proper divisors (276328705868).

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

202102110100 is a wasteful number, since it uses less digits than its factorization.

202102110100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183729216 (or 183729209 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 202102110100 its reverse (1011201202), we get a palindrome (203113311302).

The spelling of 202102110100 in words is "two hundred two billion, one hundred two million, one hundred ten thousand, one hundred".