202012122112 has 88 divisors (see below), whose sum is σ = 427160689056. Its totient is φ = 95290195968.

The previous prime is 202012122101. The next prime is 202012122149. The reversal of 202012122112 is 211221210202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1660548 + ... + 1778044.

Almost surely, 2^202012122112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202012122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213580344528).

202012122112 is an abundant number, since it is smaller than the sum of its proper divisors (225148566944).

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

202012122112 is a wasteful number, since it uses less digits than its factorization.

202012122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117613 (or 117595 counting only the distinct ones).

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

Adding to 202012122112 its reverse (211221210202), we get a palindrome (413233332314).

The spelling of 202012122112 in words is "two hundred two billion, twelve million, one hundred twenty-two thousand, one hundred twelve".