12208807697 has 2 divisors, whose sum is σ = 12208807698. Its totient is φ = 12208807696.

The previous prime is 12208807691. The next prime is 12208807801. The reversal of 12208807697 is 79670880221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11358443776 + 850363921 = 106576^2 + 29161^2 .

It is a cyclic number.

It is not a de Polignac number, because 12208807697 - 2⁸ = 12208807441 is a prime.

It is not a weakly prime, because it can be changed into another prime (12208807691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6104403848 + 6104403849.

It is an arithmetic number, because the mean of its divisors is an integer number (6104403849).

Almost surely, 2^12208807697 is an apocalyptic number.

It is an amenable number.

12208807697 is a deficient number, since it is larger than the sum of its proper divisors (1).

12208807697 is an equidigital number, since it uses as much as digits as its factorization.

12208807697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 50.

The spelling of 12208807697 in words is "twelve billion, two hundred eight million, eight hundred seven thousand, six hundred ninety-seven".