202202221212112 has 80 divisors (see below), whose sum is σ = 429870731423040. Its totient is φ = 91374927897600.

The previous prime is 202202221212109. The next prime is 202202221212161. The reversal of 202202221212112 is 211212122202202.

It is a super-2 number, since 2×202202221212112² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784546564 + ... + 784804252.

It is an arithmetic number, because the mean of its divisors is an integer number (5373384142788).

Almost surely, 2^{202202221212112} is an apocalyptic number.

202202221212112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202202221212112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214935365711520).

202202221212112 is an abundant number, since it is smaller than the sum of its proper divisors (227668510210928).

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

202202221212112 is a wasteful number, since it uses less digits than its factorization.

202202221212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283652 (or 283646 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 202202221212112 its reverse (211212122202202), we get a palindrome (413414343414314).

The spelling of 202202221212112 in words is "two hundred two trillion, two hundred two billion, two hundred twenty-one million, two hundred twelve thousand, one hundred twelve".