12012111303209 has 2 divisors, whose sum is σ = 12012111303210. Its totient is φ = 12012111303208.

The previous prime is 12012111303187. The next prime is 12012111303221. The reversal of 12012111303209 is 90230311121021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6709799147584 + 5302312155625 = 2590328^2 + 2302675^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012111303209 - 2⁸ = 12012111302953 is a prime.

It is not a weakly prime, because it can be changed into another prime (12012111303289) 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, 6006055651604 + 6006055651605.

It is an arithmetic number, because the mean of its divisors is an integer number (6006055651605).

Almost surely, 2^{12012111303209} is an apocalyptic number.

It is an amenable number.

12012111303209 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012111303209 is an equidigital number, since it uses as much as digits as its factorization.

12012111303209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 12012111303209 in words is "twelve trillion, twelve billion, one hundred eleven million, three hundred three thousand, two hundred nine".