11123222017 has 2 divisors, whose sum is σ = 11123222018. Its totient is φ = 11123222016.

The previous prime is 11123221999. The next prime is 11123222063. The reversal of 11123222017 is 71022232111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9714270721 + 1408951296 = 98561^2 + 37536^2 .

It is a cyclic number.

It is not a de Polignac number, because 11123222017 - 2¹⁵ = 11123189249 is a prime.

It is not a weakly prime, because it can be changed into another prime (11123222087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561611008 + 5561611009.

It is an arithmetic number, because the mean of its divisors is an integer number (5561611009).

Almost surely, 2^11123222017 is an apocalyptic number.

It is an amenable number.

11123222017 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123222017 is an equidigital number, since it uses as much as digits as its factorization.

11123222017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 11123222017 its reverse (71022232111), we get a palindrome (82145454128).

The spelling of 11123222017 in words is "eleven billion, one hundred twenty-three million, two hundred twenty-two thousand, seventeen".