202120122120112 has 20 divisors (see below), whose sum is σ = 447551698980496. Its totient is φ = 86622909480000.

The previous prime is 202120122120107. The next prime is 202120122120113. The reversal of 202120122120112 is 211021221021202.

It is a self number, because there is not a number n which added to its sum of digits gives 202120122120112.

It is not an unprimeable number, because it can be changed into a prime (202120122120113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 902321973639 + ... + 902321973862.

Almost surely, 2^{202120122120112} is an apocalyptic number.

It is an amenable number.

202120122120112 is an abundant number, since it is smaller than the sum of its proper divisors (245431576860384).

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

202120122120112 is a wasteful number, since it uses less digits than its factorization.

202120122120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804643947516 (or 1804643947510 counting only the distinct ones).

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

Adding to 202120122120112 its reverse (211021221021202), we get a palindrome (413141343141314).

The spelling of 202120122120112 in words is "two hundred two trillion, one hundred twenty billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twelve".