202112121004 has 24 divisors (see below), whose sum is σ = 358106112000. Its totient is φ = 99803703120.

The previous prime is 202112120939. The next prime is 202112121017. The reversal of 202112121004 is 400121211202.

202112121004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 845404 + ... + 1057795.

It is an arithmetic number, because the mean of its divisors is an integer number (14921088000).

Almost surely, 2^202112121004 is an apocalyptic number.

It is an amenable number.

202112121004 is a deficient number, since it is larger than the sum of its proper divisors (155993990996).

202112121004 is a wasteful number, since it uses less digits than its factorization.

202112121004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903533 (or 1903531 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202112121004 its reverse (400121211202), we get a palindrome (602233332206).

The spelling of 202112121004 in words is "two hundred two billion, one hundred twelve million, one hundred twenty-one thousand, four".