12201021332609 has 2 divisors, whose sum is σ = 12201021332610. Its totient is φ = 12201021332608.

The previous prime is 12201021332569. The next prime is 12201021332639. The reversal of 12201021332609 is 90623312010221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9981353411584 + 2219667921025 = 3159328^2 + 1489855^2 .

It is a cyclic number.

It is not a de Polignac number, because 12201021332609 - 2²⁸ = 12200752897153 is a prime.

It is not a weakly prime, because it can be changed into another prime (12201021332639) 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, 6100510666304 + 6100510666305.

It is an arithmetic number, because the mean of its divisors is an integer number (6100510666305).

Almost surely, 2^{12201021332609} is an apocalyptic number.

It is an amenable number.

12201021332609 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201021332609 is an equidigital number, since it uses as much as digits as its factorization.

12201021332609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 12201021332609 in words is "twelve trillion, two hundred one billion, twenty-one million, three hundred thirty-two thousand, six hundred nine".