22022250643577 has 2 divisors, whose sum is σ = 22022250643578. Its totient is φ = 22022250643576.

The previous prime is 22022250643559. The next prime is 22022250643607. The reversal of 22022250643577 is 77534605222022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21894500872336 + 127749771241 = 4679156^2 + 357421^2 .

It is a cyclic number.

It is not a de Polignac number, because 22022250643577 - 2¹⁸ = 22022250381433 is a prime.

It is not a weakly prime, because it can be changed into another prime (22022250643507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11011125321788 + 11011125321789.

It is an arithmetic number, because the mean of its divisors is an integer number (11011125321789).

Almost surely, 2^{22022250643577} is an apocalyptic number.

It is an amenable number.

22022250643577 is a deficient number, since it is larger than the sum of its proper divisors (1).

22022250643577 is an equidigital number, since it uses as much as digits as its factorization.

22022250643577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2822400, while the sum is 47.

Adding to 22022250643577 its reverse (77534605222022), we get a palindrome (99556855865599).

The spelling of 22022250643577 in words is "twenty-two trillion, twenty-two billion, two hundred fifty million, six hundred forty-three thousand, five hundred seventy-seven".