22144223357 has 2 divisors, whose sum is σ = 22144223358. Its totient is φ = 22144223356.

The previous prime is 22144223329. The next prime is 22144223371. The reversal of 22144223357 is 75332244122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21799341316 + 344882041 = 147646^2 + 18571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22144223357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22144223317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11072111678 + 11072111679.

It is an arithmetic number, because the mean of its divisors is an integer number (11072111679).

Almost surely, 2^22144223357 is an apocalyptic number.

It is an amenable number.

22144223357 is a deficient number, since it is larger than the sum of its proper divisors (1).

22144223357 is an equidigital number, since it uses as much as digits as its factorization.

22144223357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 35.

Adding to 22144223357 its reverse (75332244122), we get a palindrome (97476467479).

The spelling of 22144223357 in words is "twenty-two billion, one hundred forty-four million, two hundred twenty-three thousand, three hundred fifty-seven".