22111112112 has 20 divisors (see below), whose sum is σ = 57120373080. Its totient is φ = 7370370688.

The previous prime is 22111112083. The next prime is 22111112119. The reversal of 22111112112 is 21121111122.

It is a happy number.

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22111112091 and 22111112100.

It is not an unprimeable number, because it can be changed into a prime (22111112119) 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, 230324037 + ... + 230324132.

It is an arithmetic number, because the mean of its divisors is an integer number (2856018654).

Almost surely, 2^22111112112 is an apocalyptic number.

It is an amenable number.

22111112112 is an abundant number, since it is smaller than the sum of its proper divisors (35009260968).

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

22111112112 is a wasteful number, since it uses less digits than its factorization.

22111112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460648180 (or 460648174 counting only the distinct ones).

The product of its digits is 16, while the sum is 15.

Adding to 22111112112 its reverse (21121111122), we get a palindrome (43232223234).

The spelling of 22111112112 in words is "twenty-two billion, one hundred eleven million, one hundred twelve thousand, one hundred twelve".