22298421857 has 2 divisors, whose sum is σ = 22298421858. Its totient is φ = 22298421856.

The previous prime is 22298421851. The next prime is 22298421863. The reversal of 22298421857 is 75812489222.

It is a balanced prime because it is at equal distance from previous prime (22298421851) and next prime (22298421863).

It can be written as a sum of positive squares in only one way, i.e., 21014561296 + 1283860561 = 144964^2 + 35831^2 .

It is a cyclic number.

It is not a de Polignac number, because 22298421857 - 2⁸ = 22298421601 is a prime.

It is not a weakly prime, because it can be changed into another prime (22298421851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11149210928 + 11149210929.

It is an arithmetic number, because the mean of its divisors is an integer number (11149210929).

Almost surely, 2^22298421857 is an apocalyptic number.

It is an amenable number.

22298421857 is a deficient number, since it is larger than the sum of its proper divisors (1).

22298421857 is an equidigital number, since it uses as much as digits as its factorization.

22298421857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 50.

The spelling of 22298421857 in words is "twenty-two billion, two hundred ninety-eight million, four hundred twenty-one thousand, eight hundred fifty-seven".