12222205837 has 2 divisors, whose sum is σ = 12222205838. Its totient is φ = 12222205836.

The previous prime is 12222205813. The next prime is 12222205841. The reversal of 12222205837 is 73850222221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11313725956 + 908479881 = 106366^2 + 30141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12222205837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12222205337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111102918 + 6111102919.

It is an arithmetic number, because the mean of its divisors is an integer number (6111102919).

Almost surely, 2^12222205837 is an apocalyptic number.

It is an amenable number.

12222205837 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222205837 is an equidigital number, since it uses as much as digits as its factorization.

12222205837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 12222205837 in words is "twelve billion, two hundred twenty-two million, two hundred five thousand, eight hundred thirty-seven".