12201202309 has 2 divisors, whose sum is σ = 12201202310. Its totient is φ = 12201202308.

The previous prime is 12201202231. The next prime is 12201202333. The reversal of 12201202309 is 90320210221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9944477284 + 2256725025 = 99722^2 + 47505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12201202309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12201202309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12201202009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100601154 + 6100601155.

It is an arithmetic number, because the mean of its divisors is an integer number (6100601155).

Almost surely, 2^12201202309 is an apocalyptic number.

It is an amenable number.

12201202309 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201202309 is an equidigital number, since it uses as much as digits as its factorization.

12201202309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 12201202309 in words is "twelve billion, two hundred one million, two hundred two thousand, three hundred nine".