22023332121 has 16 divisors (see below), whose sum is σ = 33765254144. Its totient is φ = 12507552144.

The previous prime is 22023332101. The next prime is 22023332131. The reversal of 22023332121 is 12123332022.

It is a happy number.

It is not a de Polignac number, because 22023332121 - 2¹⁸ = 22023069977 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 not an unprimeable number, because it can be changed into a prime (22023332101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3213541 + ... + 3220386.

It is an arithmetic number, because the mean of its divisors is an integer number (2110328384).

Almost surely, 2^22023332121 is an apocalyptic number.

22023332121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22023332121 is a deficient number, since it is larger than the sum of its proper divisors (11741922023).

22023332121 is a wasteful number, since it uses less digits than its factorization.

22023332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6434100.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22023332121 its reverse (12123332022), we get a palindrome (34146664143).

Subtracting from 22023332121 its reverse (12123332022), we obtain a palindrome (9900000099).

The spelling of 22023332121 in words is "twenty-two billion, twenty-three million, three hundred thirty-two thousand, one hundred twenty-one".