22244332457 has 2 divisors, whose sum is σ = 22244332458. Its totient is φ = 22244332456.

The previous prime is 22244332393. The next prime is 22244332477. The reversal of 22244332457 is 75423344222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18032192656 + 4212139801 = 134284^2 + 64901^2 .

It is a cyclic number.

It is not a de Polignac number, because 22244332457 - 2⁶ = 22244332393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22244332457.

It is not a weakly prime, because it can be changed into another prime (22244332477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11122166228 + 11122166229.

It is an arithmetic number, because the mean of its divisors is an integer number (11122166229).

Almost surely, 2^22244332457 is an apocalyptic number.

It is an amenable number.

22244332457 is a deficient number, since it is larger than the sum of its proper divisors (1).

22244332457 is an equidigital number, since it uses as much as digits as its factorization.

22244332457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 38.

Adding to 22244332457 its reverse (75423344222), we get a palindrome (97667676679).

The spelling of 22244332457 in words is "twenty-two billion, two hundred forty-four million, three hundred thirty-two thousand, four hundred fifty-seven".