22144234121 has 4 divisors (see below), whose sum is σ = 22147171200. Its totient is φ = 22141297044.

The previous prime is 22144234103. The next prime is 22144234157. The reversal of 22144234121 is 12143244122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22144234121 - 2¹⁸ = 22143971977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22144234921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1457201 + ... + 1472318.

It is an arithmetic number, because the mean of its divisors is an integer number (5536792800).

Almost surely, 2^22144234121 is an apocalyptic number.

It is an amenable number.

22144234121 is a deficient number, since it is larger than the sum of its proper divisors (2937079).

22144234121 is an equidigital number, since it uses as much as digits as its factorization.

22144234121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937078.

The product of its digits is 3072, while the sum is 26.

Adding to 22144234121 its reverse (12143244122), we get a palindrome (34287478243).

The spelling of 22144234121 in words is "twenty-two billion, one hundred forty-four million, two hundred thirty-four thousand, one hundred twenty-one".