22144475121 has 4 divisors (see below), whose sum is σ = 29525966832. Its totient is φ = 14762983412.

The previous prime is 22144475113. The next prime is 22144475131. The reversal of 22144475121 is 12157444122.

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 22144475121 - 2³ = 22144475113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22144475131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3690745851 + ... + 3690745856.

It is an arithmetic number, because the mean of its divisors is an integer number (7381491708).

Almost surely, 2^22144475121 is an apocalyptic number.

It is an amenable number.

22144475121 is a deficient number, since it is larger than the sum of its proper divisors (7381491711).

22144475121 is an equidigital number, since it uses as much as digits as its factorization.

22144475121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7381491710.

The product of its digits is 17920, while the sum is 33.

The spelling of 22144475121 in words is "twenty-two billion, one hundred forty-four million, four hundred seventy-five thousand, one hundred twenty-one".