202112254212 has 48 divisors (see below), whose sum is σ = 514928511552. Its totient is φ = 61191262080.

The previous prime is 202112254187. The next prime is 202112254217. The reversal of 202112254212 is 212452211202.

It is a happy number.

It is a super-2 number, since 2×202112254212² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202112254217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537943 + ... + 832830.

It is an arithmetic number, because the mean of its divisors is an integer number (10727677324).

Almost surely, 2^202112254212 is an apocalyptic number.

202112254212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

202112254212 is an abundant number, since it is smaller than the sum of its proper divisors (312816257340).

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

202112254212 is a wasteful number, since it uses less digits than its factorization.

202112254212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371908 (or 1371906 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 202112254212 its reverse (212452211202), we get a palindrome (414564465414).

The spelling of 202112254212 in words is "two hundred two billion, one hundred twelve million, two hundred fifty-four thousand, two hundred twelve".