22691368121 has 4 divisors (see below), whose sum is σ = 22721583744. Its totient is φ = 22661152500.

The previous prime is 22691368097. The next prime is 22691368163. The reversal of 22691368121 is 12186319622.

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 a de Polignac number, because none of the positive numbers 2^k-22691368121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22691338121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15106685 + ... + 15108186.

It is an arithmetic number, because the mean of its divisors is an integer number (5680395936).

Almost surely, 2^22691368121 is an apocalyptic number.

It is an amenable number.

22691368121 is a deficient number, since it is larger than the sum of its proper divisors (30215623).

22691368121 is an equidigital number, since it uses as much as digits as its factorization.

22691368121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30215622.

The product of its digits is 62208, while the sum is 41.

The spelling of 22691368121 in words is "twenty-two billion, six hundred ninety-one million, three hundred sixty-eight thousand, one hundred twenty-one".