22220202221112 has 256 divisors, whose sum is σ = 69190209331200. Its totient is φ = 5808331584000.

The previous prime is 22220202221099. The next prime is 22220202221179. The reversal of 22220202221112 is 21112220202222.

It is a super-2 number, since 2×22220202221112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7117987 + ... + 9752237.

It is an arithmetic number, because the mean of its divisors is an integer number (270274255200).

Almost surely, 2^{22220202221112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22220202221112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34595104665600).

22220202221112 is an abundant number, since it is smaller than the sum of its proper divisors (46970007110088).

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

22220202221112 is a wasteful number, since it uses less digits than its factorization.

22220202221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634386 (or 2634382 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22220202221112 its reverse (21112220202222), we get a palindrome (43332422423334).

The spelling of 22220202221112 in words is "twenty-two trillion, two hundred twenty billion, two hundred two million, two hundred twenty-one thousand, one hundred twelve".