22222250257 has 2 divisors, whose sum is σ = 22222250258. Its totient is φ = 22222250256.

The previous prime is 22222250243. The next prime is 22222250269. The reversal of 22222250257 is 75205222222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14063825281 + 8158424976 = 118591^2 + 90324^2 .

It is a cyclic number.

It is not a de Polignac number, because 22222250257 - 2¹⁹ = 22221725969 is a prime.

It is not a weakly prime, because it can be changed into another prime (22222250227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11111125128 + 11111125129.

It is an arithmetic number, because the mean of its divisors is an integer number (11111125129).

Almost surely, 2^22222250257 is an apocalyptic number.

It is an amenable number.

22222250257 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222250257 is an equidigital number, since it uses as much as digits as its factorization.

22222250257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22400, while the sum is 31.

Adding to 22222250257 its reverse (75205222222), we get a palindrome (97427472479).

The spelling of 22222250257 in words is "twenty-two billion, two hundred twenty-two million, two hundred fifty thousand, two hundred fifty-seven".