12197802241 has 2 divisors, whose sum is σ = 12197802242. Its totient is φ = 12197802240.

The previous prime is 12197802223. The next prime is 12197802251. The reversal of 12197802241 is 14220879121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8150297841 + 4047504400 = 90279^2 + 63620^2 .

It is an emirp because it is prime and its reverse (14220879121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12197802241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12197802241.

It is not a weakly prime, because it can be changed into another prime (12197802251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6098901120 + 6098901121.

It is an arithmetic number, because the mean of its divisors is an integer number (6098901121).

Almost surely, 2^12197802241 is an apocalyptic number.

It is an amenable number.

12197802241 is a deficient number, since it is larger than the sum of its proper divisors (1).

12197802241 is an equidigital number, since it uses as much as digits as its factorization.

12197802241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 12197802241 in words is "twelve billion, one hundred ninety-seven million, eight hundred two thousand, two hundred forty-one".