12200010212009 has 2 divisors, whose sum is σ = 12200010212010. Its totient is φ = 12200010212008.

The previous prime is 12200010211981. The next prime is 12200010212011. The reversal of 12200010212009 is 90021201000221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9927068025625 + 2272942186384 = 3150725^2 + 1507628^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12200010212009 is a prime.

It is a Sophie Germain prime.

Together with 12200010212011, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12200010212059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100005106004 + 6100005106005.

It is an arithmetic number, because the mean of its divisors is an integer number (6100005106005).

Almost surely, 2^{12200010212009} is an apocalyptic number.

It is an amenable number.

12200010212009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12200010212009 is an equidigital number, since it uses as much as digits as its factorization.

12200010212009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 12200010212009 in words is "twelve trillion, two hundred billion, ten million, two hundred twelve thousand, nine".