22332221121 has 16 divisors (see below), whose sum is σ = 35821107200. Its totient is φ = 12089623248.

The previous prime is 22332221117. The next prime is 22332221123. The reversal of 22332221121 is 12112223322.

It is not a de Polignac number, because 22332221121 - 2² = 22332221117 is a prime.

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

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22332221123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27984841 + ... + 27985638.

It is an arithmetic number, because the mean of its divisors is an integer number (2238819200).

Almost surely, 2^22332221121 is an apocalyptic number.

22332221121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22332221121 is a deficient number, since it is larger than the sum of its proper divisors (13488886079).

22332221121 is a wasteful number, since it uses less digits than its factorization.

22332221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55970508.

The product of its digits is 576, while the sum is 21.

Adding to 22332221121 its reverse (12112223322), we get a palindrome (34444444443).

The spelling of 22332221121 in words is "twenty-two billion, three hundred thirty-two million, two hundred twenty-one thousand, one hundred twenty-one".