11115016217 has 2 divisors, whose sum is σ = 11115016218. Its totient is φ = 11115016216.

The previous prime is 11115016201. The next prime is 11115016219. The reversal of 11115016217 is 71261051111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6966239296 + 4148776921 = 83464^2 + 64411^2 .

It is an emirp because it is prime and its reverse (71261051111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11115016217 - 2⁴ = 11115016201 is a prime.

Together with 11115016219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11115016219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5557508108 + 5557508109.

It is an arithmetic number, because the mean of its divisors is an integer number (5557508109).

Almost surely, 2^11115016217 is an apocalyptic number.

It is an amenable number.

11115016217 is a deficient number, since it is larger than the sum of its proper divisors (1).

11115016217 is an equidigital number, since it uses as much as digits as its factorization.

11115016217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 26.

Adding to 11115016217 its reverse (71261051111), we get a palindrome (82376067328).

The spelling of 11115016217 in words is "eleven billion, one hundred fifteen million, sixteen thousand, two hundred seventeen".