22123168451 has 2 divisors, whose sum is σ = 22123168452. Its totient is φ = 22123168450.

The previous prime is 22123168421. The next prime is 22123168523. The reversal of 22123168451 is 15486132122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22123168451 - 2¹⁸ = 22122906307 is a prime.

It is a super-2 number, since 2×22123168451² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22123168411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061584225 + 11061584226.

It is an arithmetic number, because the mean of its divisors is an integer number (11061584226).

Almost surely, 2^22123168451 is an apocalyptic number.

22123168451 is a deficient number, since it is larger than the sum of its proper divisors (1).

22123168451 is an equidigital number, since it uses as much as digits as its factorization.

22123168451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 35.

The spelling of 22123168451 in words is "twenty-two billion, one hundred twenty-three million, one hundred sixty-eight thousand, four hundred fifty-one".