22112012221110 has 288 divisors, whose sum is σ = 69297654546432. Its totient is φ = 4787060273280.

The previous prime is 22112012221099. The next prime is 22112012221129. The reversal of 22112012221110 is 1112221021122.

22112012221110 is a `hidden beast` number, since 221 + 1 + 201 + 22 + 211 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 42885499 + ... + 43398041.

It is an arithmetic number, because the mean of its divisors is an integer number (240616856064).

Almost surely, 2^{22112012221110} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22112012221110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34648827273216).

22112012221110 is an abundant number, since it is smaller than the sum of its proper divisors (47185642325322).

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

22112012221110 is a wasteful number, since it uses less digits than its factorization.

22112012221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512688 (or 512638 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22112012221110 its reverse (1112221021122), we get a palindrome (23224233242232).

The spelling of 22112012221110 in words is "twenty-two trillion, one hundred twelve billion, twelve million, two hundred twenty-one thousand, one hundred ten".