22222202121112 has 32 divisors (see below), whose sum is σ = 47620579403520. Its totient is φ = 9523485937440.

The previous prime is 22222202121101. The next prime is 22222202121113. The reversal of 22222202121112 is 21112120222222.

It is a super-2 number, since 2×22222202121112² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222202121113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4849564 + ... + 8243947.

It is an arithmetic number, because the mean of its divisors is an integer number (1488143106360).

Almost surely, 2^{22222202121112} is an apocalyptic number.

It is an amenable number.

22222202121112 is an abundant number, since it is smaller than the sum of its proper divisors (25398377282408).

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

22222202121112 is a wasteful number, since it uses less digits than its factorization.

22222202121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13123831 (or 13123827 counting only the distinct ones).

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

Adding to 22222202121112 its reverse (21112120222222), we get a palindrome (43334322343334).

The spelling of 22222202121112 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred two million, one hundred twenty-one thousand, one hundred twelve".