12101202120109 has 4 divisors (see below), whose sum is σ = 12101398971516. Its totient is φ = 12101005268704.

The previous prime is 12101202120071. The next prime is 12101202120121. The reversal of 12101202120109 is 90102120210121.

12101202120109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7508230213225 + 4592971906884 = 2740115^2 + 2143122^2 .

It is a cyclic number.

It is not a de Polignac number, because 12101202120109 - 2¹⁵ = 12101202087341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12101202120109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101202120169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98333464 + ... + 98456449.

It is an arithmetic number, because the mean of its divisors is an integer number (3025349742879).

Almost surely, 2^{12101202120109} is an apocalyptic number.

It is an amenable number.

12101202120109 is a deficient number, since it is larger than the sum of its proper divisors (196851407).

12101202120109 is an equidigital number, since it uses as much as digits as its factorization.

12101202120109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196851406.

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

The spelling of 12101202120109 in words is "twelve trillion, one hundred one billion, two hundred two million, one hundred twenty thousand, one hundred nine".