11100120217 has 2 divisors, whose sum is σ = 11100120218. Its totient is φ = 11100120216.

The previous prime is 11100120151. The next prime is 11100120221. The reversal of 11100120217 is 71202100111.

11100120217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10629403801 + 470716416 = 103099^2 + 21696^2 .

It is an emirp because it is prime and its reverse (71202100111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11100120217 - 2³¹ = 8952636569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11100120217.

It is not a weakly prime, because it can be changed into another prime (11100120247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550060108 + 5550060109.

It is an arithmetic number, because the mean of its divisors is an integer number (5550060109).

Almost surely, 2^11100120217 is an apocalyptic number.

It is an amenable number.

11100120217 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100120217 is an equidigital number, since it uses as much as digits as its factorization.

11100120217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 16.

Adding to 11100120217 its reverse (71202100111), we get a palindrome (82302220328).

The spelling of 11100120217 in words is "eleven billion, one hundred million, one hundred twenty thousand, two hundred seventeen".