202012212012112 has 30 divisors (see below), whose sum is σ = 413082797116218. Its totient is φ = 95689995160896.

The previous prime is 202012212012071. The next prime is 202012212012187. The reversal of 202012212012112 is 211210212210202.

It can be written as a sum of positive squares in only one way, i.e., 202011188268096 + 1023744016 = 14213064^2 + 31996^2 .

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 202012212012112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17487200943 + ... + 17487212494.

Almost surely, 2^{202012212012112} is an apocalyptic number.

It is an amenable number.

202012212012112 is an abundant number, since it is smaller than the sum of its proper divisors (211070585104106).

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

202012212012112 is a wasteful number, since it uses less digits than its factorization.

202012212012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34974413483 (or 34974413458 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 202012212012112 its reverse (211210212210202), we get a palindrome (413222424222314).

The spelling of 202012212012112 in words is "two hundred two trillion, twelve billion, two hundred twelve million, twelve thousand, one hundred twelve".