13210212209 has 2 divisors, whose sum is σ = 13210212210. Its totient is φ = 13210212208.

The previous prime is 13210212193. The next prime is 13210212233. The reversal of 13210212209 is 90221201231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12567082609 + 643129600 = 112103^2 + 25360^2 .

It is a cyclic number.

It is not a de Polignac number, because 13210212209 - 2⁴ = 13210212193 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13210212299) 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, 6605106104 + 6605106105.

It is an arithmetic number, because the mean of its divisors is an integer number (6605106105).

Almost surely, 2^13210212209 is an apocalyptic number.

It is an amenable number.

13210212209 is a deficient number, since it is larger than the sum of its proper divisors (1).

13210212209 is an equidigital number, since it uses as much as digits as its factorization.

13210212209 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 23.

The spelling of 13210212209 in words is "thirteen billion, two hundred ten million, two hundred twelve thousand, two hundred nine".