22942148891 has 2 divisors, whose sum is σ = 22942148892. Its totient is φ = 22942148890.

The previous prime is 22942148857. The next prime is 22942148897. The reversal of 22942148891 is 19884124922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22942148891 - 2³⁴ = 5762279707 is a prime.

It is not a weakly prime, because it can be changed into another prime (22942148897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11471074445 + 11471074446.

It is an arithmetic number, because the mean of its divisors is an integer number (11471074446).

Almost surely, 2^22942148891 is an apocalyptic number.

22942148891 is a deficient number, since it is larger than the sum of its proper divisors (1).

22942148891 is an equidigital number, since it uses as much as digits as its factorization.

22942148891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 50.

The spelling of 22942148891 in words is "twenty-two billion, nine hundred forty-two million, one hundred forty-eight thousand, eight hundred ninety-one".