22866495217 has 2 divisors, whose sum is σ = 22866495218. Its totient is φ = 22866495216.

The previous prime is 22866495199. The next prime is 22866495227. The reversal of 22866495217 is 71259466822.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17944209936 + 4922285281 = 133956^2 + 70159^2 .

It is a cyclic number.

It is not a de Polignac number, because 22866495217 - 2³¹ = 20719011569 is a prime.

It is not a weakly prime, because it can be changed into another prime (22866495227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11433247608 + 11433247609.

It is an arithmetic number, because the mean of its divisors is an integer number (11433247609).

Almost surely, 2^22866495217 is an apocalyptic number.

It is an amenable number.

22866495217 is a deficient number, since it is larger than the sum of its proper divisors (1).

22866495217 is an equidigital number, since it uses as much as digits as its factorization.

22866495217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 52.

The spelling of 22866495217 in words is "twenty-two billion, eight hundred sixty-six million, four hundred ninety-five thousand, two hundred seventeen".