22534121112 has 128 divisors (see below), whose sum is σ = 60155447040. Its totient is φ = 7009832960.

The previous prime is 22534121101. The next prime is 22534121149. The reversal of 22534121112 is 21112143522.

It is a happy number.

It is a super-2 number, since 2×22534121112² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43251412 + ... + 43251932.

It is an arithmetic number, because the mean of its divisors is an integer number (469964430).

Almost surely, 2^22534121112 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 22534121112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30077723520).

22534121112 is an abundant number, since it is smaller than the sum of its proper divisors (37621325928).

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

22534121112 is a wasteful number, since it uses less digits than its factorization.

22534121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241 (or 1237 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

Adding to 22534121112 its reverse (21112143522), we get a palindrome (43646264634).

The spelling of 22534121112 in words is "twenty-two billion, five hundred thirty-four million, one hundred twenty-one thousand, one hundred twelve".