22144323121 has 16 divisors (see below), whose sum is σ = 22986633600. Its totient is φ = 21307420288.

The previous prime is 22144323119. The next prime is 22144323133. The reversal of 22144323121 is 12132344122.

It is a cyclic number.

It is not a de Polignac number, because 22144323121 - 2¹ = 22144323119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22144323191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17588190 + ... + 17589448.

It is an arithmetic number, because the mean of its divisors is an integer number (1436664600).

Almost surely, 2^22144323121 is an apocalyptic number.

It is an amenable number.

22144323121 is a deficient number, since it is larger than the sum of its proper divisors (842310479).

22144323121 is a wasteful number, since it uses less digits than its factorization.

22144323121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888.

The product of its digits is 2304, while the sum is 25.

Adding to 22144323121 its reverse (12132344122), we get a palindrome (34276667243).

The spelling of 22144323121 in words is "twenty-two billion, one hundred forty-four million, three hundred twenty-three thousand, one hundred twenty-one".