12201111122017 has 2 divisors, whose sum is σ = 12201111122018. Its totient is φ = 12201111122016.

The previous prime is 12201111121999. The next prime is 12201111122021. The reversal of 12201111122017 is 71022111110221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9794421196816 + 2406689925201 = 3129604^2 + 1551351^2 .

It is an emirp because it is prime and its reverse (71022111110221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12201111122017 - 2³¹ = 12198963638369 is a prime.

It is a super-2 number, since 2×12201111122017² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12201111122917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100555561008 + 6100555561009.

It is an arithmetic number, because the mean of its divisors is an integer number (6100555561009).

Almost surely, 2^{12201111122017} is an apocalyptic number.

It is an amenable number.

12201111122017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201111122017 is an equidigital number, since it uses as much as digits as its factorization.

12201111122017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 22.

Adding to 12201111122017 its reverse (71022111110221), we get a palindrome (83223222232238).

The spelling of 12201111122017 in words is "twelve trillion, two hundred one billion, one hundred eleven million, one hundred twenty-two thousand, seventeen".