10211200211209 has 2 divisors, whose sum is σ = 10211200211210. Its totient is φ = 10211200211208.

The previous prime is 10211200211141. The next prime is 10211200211213. The reversal of 10211200211209 is 90211200211201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6114838752400 + 4096361458809 = 2472820^2 + 2023947^2 .

It is an emirp because it is prime and its reverse (90211200211201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10211200211209 - 2³¹ = 10209052727561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10211200211209.

It is not a weakly prime, because it can be changed into another prime (10211200214209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105600105604 + 5105600105605.

It is an arithmetic number, because the mean of its divisors is an integer number (5105600105605).

Almost surely, 2^{10211200211209} is an apocalyptic number.

It is an amenable number.

10211200211209 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211200211209 is an equidigital number, since it uses as much as digits as its factorization.

10211200211209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 10211200211209 in words is "ten trillion, two hundred eleven billion, two hundred million, two hundred eleven thousand, two hundred nine".