22111000113217 has 2 divisors, whose sum is σ = 22111000113218. Its totient is φ = 22111000113216.

The previous prime is 22111000113187. The next prime is 22111000113263. The reversal of 22111000113217 is 71231100011122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18412028773776 + 3698971339441 = 4290924^2 + 1923271^2 .

It is a cyclic number.

It is not a de Polignac number, because 22111000113217 - 2¹¹ = 22111000111169 is a prime.

It is not a weakly prime, because it can be changed into another prime (22111000111217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055500056608 + 11055500056609.

It is an arithmetic number, because the mean of its divisors is an integer number (11055500056609).

Almost surely, 2^{22111000113217} is an apocalyptic number.

It is an amenable number.

22111000113217 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111000113217 is an equidigital number, since it uses as much as digits as its factorization.

22111000113217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 22.

Adding to 22111000113217 its reverse (71231100011122), we get a palindrome (93342100124339).

The spelling of 22111000113217 in words is "twenty-two trillion, one hundred eleven billion, one hundred thirteen thousand, two hundred seventeen".