22232122122 has 24 divisors (see below), whose sum is σ = 51723713376. Its totient is φ = 6352034808.

The previous prime is 22232122117. The next prime is 22232122123. The reversal of 22232122122 is 22122123222.

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22232122123) 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, 37809438 + ... + 37810025.

It is an arithmetic number, because the mean of its divisors is an integer number (2155154724).

Almost surely, 2^22232122122 is an apocalyptic number.

22232122122 is an abundant number, since it is smaller than the sum of its proper divisors (29491591254).

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

22232122122 is a wasteful number, since it uses less digits than its factorization.

22232122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75619482 (or 75619475 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

Adding to 22232122122 its reverse (22122123222), we get a palindrome (44354245344).

The spelling of 22232122122 in words is "twenty-two billion, two hundred thirty-two million, one hundred twenty-two thousand, one hundred twenty-two".