22144243057 has 2 divisors, whose sum is σ = 22144243058. Its totient is φ = 22144243056.

The previous prime is 22144243021. The next prime is 22144243067. The reversal of 22144243057 is 75034244122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14519286016 + 7624957041 = 120496^2 + 87321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22144243057 is a prime.

It is not a weakly prime, because it can be changed into another prime (22144243067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11072121528 + 11072121529.

It is an arithmetic number, because the mean of its divisors is an integer number (11072121529).

Almost surely, 2^22144243057 is an apocalyptic number.

It is an amenable number.

22144243057 is a deficient number, since it is larger than the sum of its proper divisors (1).

22144243057 is an equidigital number, since it uses as much as digits as its factorization.

22144243057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 34.

Adding to 22144243057 its reverse (75034244122), we get a palindrome (97178487179).

The spelling of 22144243057 in words is "twenty-two billion, one hundred forty-four million, two hundred forty-three thousand, fifty-seven".