22225225577 has 2 divisors, whose sum is σ = 22225225578. Its totient is φ = 22225225576.

The previous prime is 22225225541. The next prime is 22225225609. The reversal of 22225225577 is 77552252222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21455218576 + 770007001 = 146476^2 + 27749^2 .

It is a cyclic number.

It is not a de Polignac number, because 22225225577 - 2⁶ = 22225225513 is a prime.

It is not a weakly prime, because it can be changed into another prime (22225228577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11112612788 + 11112612789.

It is an arithmetic number, because the mean of its divisors is an integer number (11112612789).

Almost surely, 2^22225225577 is an apocalyptic number.

It is an amenable number.

22225225577 is a deficient number, since it is larger than the sum of its proper divisors (1).

22225225577 is an equidigital number, since it uses as much as digits as its factorization.

22225225577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 392000, while the sum is 41.

Adding to 22225225577 its reverse (77552252222), we get a palindrome (99777477799).

The spelling of 22225225577 in words is "twenty-two billion, two hundred twenty-five million, two hundred twenty-five thousand, five hundred seventy-seven".