2010120209 has 2 divisors, whose sum is σ = 2010120210. Its totient is φ = 2010120208.

The previous prime is 2010120179. The next prime is 2010120223. The reversal of 2010120209 is 9020210102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1644545809 + 365574400 = 40553^2 + 19120^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010120209 - 2²⁰ = 2009071633 is a prime.

It is not a weakly prime, because it can be changed into another prime (2010128209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005060104 + 1005060105.

It is an arithmetic number, because the mean of its divisors is an integer number (1005060105).

Almost surely, 2^2010120209 is an apocalyptic number.

It is an amenable number.

2010120209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010120209 is an equidigital number, since it uses as much as digits as its factorization.

2010120209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2010120209 is about 44834.3641529575. The cubic root of 2010120209 is about 1262.0425862347.

The spelling of 2010120209 in words is "two billion, ten million, one hundred twenty thousand, two hundred nine".