200002121111209 has 2 divisors, whose sum is σ = 200002121111210. Its totient is φ = 200002121111208.

The previous prime is 200002121111189. The next prime is 200002121111227. The reversal of 200002121111209 is 902111121200002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163535885253225 + 36466235857984 = 12788115^2 + 6038728^2 .

It is a cyclic number.

It is not a de Polignac number, because 200002121111209 - 2¹⁹ = 200002120586921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200002121111209.

It is not a weakly prime, because it can be changed into another prime (200002121111279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100001060555604 + 100001060555605.

It is an arithmetic number, because the mean of its divisors is an integer number (100001060555605).

Almost surely, 2^{200002121111209} is an apocalyptic number.

It is an amenable number.

200002121111209 is a deficient number, since it is larger than the sum of its proper divisors (1).

200002121111209 is an equidigital number, since it uses as much as digits as its factorization.

200002121111209 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 22.

The spelling of 200002121111209 in words is "two hundred trillion, two billion, one hundred twenty-one million, one hundred eleven thousand, two hundred nine".