22032222121 has 16 divisors (see below), whose sum is σ = 27356563584. Its totient is φ = 17277813504.

The previous prime is 22032222119. The next prime is 22032222151. The reversal of 22032222121 is 12122223022.

It is not a de Polignac number, because 22032222121 - 2¹ = 22032222119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22032222151) 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, 1061011 + ... + 1081576.

It is an arithmetic number, because the mean of its divisors is an integer number (1709785224).

Almost surely, 2^22032222121 is an apocalyptic number.

It is an amenable number.

22032222121 is a deficient number, since it is larger than the sum of its proper divisors (5324341463).

22032222121 is a wasteful number, since it uses less digits than its factorization.

22032222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142720.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22032222121 its reverse (12122223022), we get a palindrome (34154445143).

Subtracting from 22032222121 its reverse (12122223022), we obtain a palindrome (9909999099).

The spelling of 22032222121 in words is "twenty-two billion, thirty-two million, two hundred twenty-two thousand, one hundred twenty-one".