201202120011209 has 2 divisors, whose sum is σ = 201202120011210. Its totient is φ = 201202120011208.

The previous prime is 201202120011181. The next prime is 201202120011293. The reversal of 201202120011209 is 902110021202102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199444300125625 + 1757819885584 = 14122475^2 + 1325828^2 .

It is a cyclic number.

It is not a de Polignac number, because 201202120011209 - 2²⁰ = 201202118962633 is a prime.

It is not a weakly prime, because it can be changed into another prime (201202120091209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100601060005604 + 100601060005605.

It is an arithmetic number, because the mean of its divisors is an integer number (100601060005605).

Almost surely, 2^{201202120011209} is an apocalyptic number.

It is an amenable number.

201202120011209 is a deficient number, since it is larger than the sum of its proper divisors (1).

201202120011209 is an equidigital number, since it uses as much as digits as its factorization.

201202120011209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 201202120011209 in words is "two hundred one trillion, two hundred two billion, one hundred twenty million, eleven thousand, two hundred nine".