202102111112202 has 128 divisors (see below), whose sum is σ = 516693153484800. Its totient is φ = 57358968696000.

The previous prime is 202102111112183. The next prime is 202102111112249. The reversal of 202102111112202 is 202211111201202.

202102111112202 is a `hidden beast` number, since 20 + 210 + 211 + 1 + 1 + 1 + 220 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2275598377 + ... + 2275687187.

It is an arithmetic number, because the mean of its divisors is an integer number (4036665261600).

Almost surely, 2^{202102111112202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202102111112202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258346576742400).

202102111112202 is an abundant number, since it is smaller than the sum of its proper divisors (314591042372598).

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

202102111112202 is a wasteful number, since it uses less digits than its factorization.

202102111112202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128849 (or 128843 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 202102111112202 its reverse (202211111201202), we get a palindrome (404313222313404).

The spelling of 202102111112202 in words is "two hundred two trillion, one hundred two billion, one hundred eleven million, one hundred twelve thousand, two hundred two".