12101010012209 has 2 divisors, whose sum is σ = 12101010012210. Its totient is φ = 12101010012208.

The previous prime is 12101010012187. The next prime is 12101010012229. The reversal of 12101010012209 is 90221001010121.

It is an a-pointer prime, because the next prime (12101010012229) can be obtained adding 12101010012209 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7843584409600 + 4257425602609 = 2800640^2 + 2063353^2 .

It is a cyclic number.

It is not a de Polignac number, because 12101010012209 - 2²⁰ = 12101008963633 is a prime.

It is not a weakly prime, because it can be changed into another prime (12101010012229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050505006104 + 6050505006105.

It is an arithmetic number, because the mean of its divisors is an integer number (6050505006105).

Almost surely, 2^{12101010012209} is an apocalyptic number.

It is an amenable number.

12101010012209 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101010012209 is an equidigital number, since it uses as much as digits as its factorization.

12101010012209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 12101010012209 in words is "twelve trillion, one hundred one billion, ten million, twelve thousand, two hundred nine".