22203122257 has 2 divisors, whose sum is σ = 22203122258. Its totient is φ = 22203122256.

The previous prime is 22203122209. The next prime is 22203122341. The reversal of 22203122257 is 75222130222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17335408896 + 4867713361 = 131664^2 + 69769^2 .

It is a cyclic number.

It is not a de Polignac number, because 22203122257 - 2¹¹ = 22203120209 is a prime.

It is not a weakly prime, because it can be changed into another prime (22203122057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11101561128 + 11101561129.

It is an arithmetic number, because the mean of its divisors is an integer number (11101561129).

Almost surely, 2^22203122257 is an apocalyptic number.

It is an amenable number.

22203122257 is a deficient number, since it is larger than the sum of its proper divisors (1).

22203122257 is an equidigital number, since it uses as much as digits as its factorization.

22203122257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 28.

Adding to 22203122257 its reverse (75222130222), we get a palindrome (97425252479).

The spelling of 22203122257 in words is "twenty-two billion, two hundred three million, one hundred twenty-two thousand, two hundred fifty-seven".