11220020017 has 2 divisors, whose sum is σ = 11220020018. Its totient is φ = 11220020016.

The previous prime is 11220020003. The next prime is 11220020051. The reversal of 11220020017 is 71002002211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9222913296 + 1997106721 = 96036^2 + 44689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11220020017 is a prime.

It is not a weakly prime, because it can be changed into another prime (11220020717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610010008 + 5610010009.

It is an arithmetic number, because the mean of its divisors is an integer number (5610010009).

Almost surely, 2^11220020017 is an apocalyptic number.

It is an amenable number.

11220020017 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220020017 is an equidigital number, since it uses as much as digits as its factorization.

11220020017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 16.

Adding to 11220020017 its reverse (71002002211), we get a palindrome (82222022228).

The spelling of 11220020017 in words is "eleven billion, two hundred twenty million, twenty thousand, seventeen".