22201220112 has 120 divisors (see below), whose sum is σ = 59421750336. Its totient is φ = 7137545472.

The previous prime is 22201220089. The next prime is 22201220123. The reversal of 22201220112 is 21102210222.

It is a super-2 number, since 2×22201220112² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22201220091 and 22201220100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34313773 + ... + 34314419.

Almost surely, 2^22201220112 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 22201220112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29710875168).

22201220112 is an abundant number, since it is smaller than the sum of its proper divisors (37220530224).

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

22201220112 is a wasteful number, since it uses less digits than its factorization.

22201220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22201220112 its reverse (21102210222), we get a palindrome (43303430334).

The spelling of 22201220112 in words is "twenty-two billion, two hundred one million, two hundred twenty thousand, one hundred twelve".