202112121010110 has 64 divisors (see below), whose sum is σ = 498204055641600. Its totient is φ = 52437271162752.

The previous prime is 202112121010043. The next prime is 202112121010123. The reversal of 202112121010110 is 11010121211202.

It is a happy number.

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 202112121010110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17619831 + ... + 26733549.

It is an arithmetic number, because the mean of its divisors is an integer number (7784438369400).

Almost surely, 2^{202112121010110} is an apocalyptic number.

202112121010110 is an abundant number, since it is smaller than the sum of its proper divisors (296091934631490).

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

202112121010110 is a wasteful number, since it uses less digits than its factorization.

202112121010110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9133745.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 202112121010110 its reverse (11010121211202), we get a palindrome (213122242221312).

The spelling of 202112121010110 in words is "two hundred two trillion, one hundred twelve billion, one hundred twenty-one million, ten thousand, one hundred ten".