22122340152 has 128 divisors (see below), whose sum is σ = 61984742400. Its totient is φ = 6521241600.

The previous prime is 22122340117. The next prime is 22122340169. The reversal of 22122340152 is 25104322122.

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, 3969624 + ... + 3975192.

It is an arithmetic number, because the mean of its divisors is an integer number (484255800).

Almost surely, 2^22122340152 is an apocalyptic number.

22122340152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22122340152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30992371200).

22122340152 is an abundant number, since it is smaller than the sum of its proper divisors (39862402248).

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

22122340152 is a wasteful number, since it uses less digits than its factorization.

22122340152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5997 (or 5993 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 22122340152 its reverse (25104322122), we get a palindrome (47226662274).

The spelling of 22122340152 in words is "twenty-two billion, one hundred twenty-two million, three hundred forty thousand, one hundred fifty-two".