22101121112 has 48 divisors (see below), whose sum is σ = 48285974520. Its totient is φ = 9456048000.

The previous prime is 22101121087. The next prime is 22101121117. The reversal of 22101121112 is 21112110122.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101121117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188687 + ... + 282497.

Almost surely, 2^22101121112 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 22101121112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24142987260).

22101121112 is an abundant number, since it is smaller than the sum of its proper divisors (26184853408).

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

22101121112 is a wasteful number, since it uses less digits than its factorization.

22101121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94432 (or 94421 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22101121112 its reverse (21112110122), we get a palindrome (43213231234).

The spelling of 22101121112 in words is "twenty-two billion, one hundred one million, one hundred twenty-one thousand, one hundred twelve".