12102222017 has 2 divisors, whose sum is σ = 12102222018. Its totient is φ = 12102222016.

The previous prime is 12102221981. The next prime is 12102222061. The reversal of 12102222017 is 71022220121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11228369296 + 873852721 = 105964^2 + 29561^2 .

It is a cyclic number.

It is not a de Polignac number, because 12102222017 - 2¹² = 12102217921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12102222017.

It is not a weakly prime, because it can be changed into another prime (12102225017) 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, 6051111008 + 6051111009.

It is an arithmetic number, because the mean of its divisors is an integer number (6051111009).

Almost surely, 2^12102222017 is an apocalyptic number.

It is an amenable number.

12102222017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102222017 is an equidigital number, since it uses as much as digits as its factorization.

12102222017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 12102222017 its reverse (71022220121), we get a palindrome (83124442138).

The spelling of 12102222017 in words is "twelve billion, one hundred two million, two hundred twenty-two thousand, seventeen".