22621495811 has 2 divisors, whose sum is σ = 22621495812. Its totient is φ = 22621495810.

The previous prime is 22621495789. The next prime is 22621495861. The reversal of 22621495811 is 11859412622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22621495811 - 2⁶ = 22621495747 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (22621495861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11310747905 + 11310747906.

It is an arithmetic number, because the mean of its divisors is an integer number (11310747906).

Almost surely, 2^22621495811 is an apocalyptic number.

22621495811 is a deficient number, since it is larger than the sum of its proper divisors (1).

22621495811 is an equidigital number, since it uses as much as digits as its factorization.

22621495811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 41.

The spelling of 22621495811 in words is "twenty-two billion, six hundred twenty-one million, four hundred ninety-five thousand, eight hundred eleven".