22201221112 has 32 divisors (see below), whose sum is σ = 47578975200. Its totient is φ = 9513823104.

The previous prime is 22201221089. The next prime is 22201221131. The reversal of 22201221112 is 21112210222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 854814 + ... + 880402.

It is an arithmetic number, because the mean of its divisors is an integer number (1486842975).

Almost surely, 2^22201221112 is an apocalyptic number.

It is an amenable number.

22201221112 is an abundant number, since it is smaller than the sum of its proper divisors (25377754088).

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

22201221112 is a wasteful number, since it uses less digits than its factorization.

22201221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41095 (or 41091 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22201221112 its reverse (21112210222), we get a palindrome (43313431334).

The spelling of 22201221112 in words is "twenty-two billion, two hundred one million, two hundred twenty-one thousand, one hundred twelve".