22055611342217 has 2 divisors, whose sum is σ = 22055611342218. Its totient is φ = 22055611342216.

The previous prime is 22055611342201. The next prime is 22055611342277. The reversal of 22055611342217 is 71224311655022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15286997399881 + 6768613942336 = 3909859^2 + 2601656^2 .

It is a cyclic number.

It is not a de Polignac number, because 22055611342217 - 2⁴ = 22055611342201 is a prime.

It is not a weakly prime, because it can be changed into another prime (22055611342277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11027805671108 + 11027805671109.

It is an arithmetic number, because the mean of its divisors is an integer number (11027805671109).

Almost surely, 2^{22055611342217} is an apocalyptic number.

It is an amenable number.

22055611342217 is a deficient number, since it is larger than the sum of its proper divisors (1).

22055611342217 is an equidigital number, since it uses as much as digits as its factorization.

22055611342217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 41.

Adding to 22055611342217 its reverse (71224311655022), we get a palindrome (93279922997239).

The spelling of 22055611342217 in words is "twenty-two trillion, fifty-five billion, six hundred eleven million, three hundred forty-two thousand, two hundred seventeen".