12012010000009 has 4 divisors (see below), whose sum is σ = 12012080125716. Its totient is φ = 12011939874304.

The previous prime is 12012009999887. The next prime is 12012010000021. The reversal of 12012010000009 is 90000001021021.

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 6141832105984 + 5870177894025 = 2478272^2 + 2422845^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012010000009 - 2⁹ = 12012009999497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12012009999947 and 12012010000001.

It is not an unprimeable number, because it can be changed into a prime (12012010000069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34805284 + ... + 35148709.

It is an arithmetic number, because the mean of its divisors is an integer number (3003020031429).

Almost surely, 2^{12012010000009} is an apocalyptic number.

It is an amenable number.

12012010000009 is a deficient number, since it is larger than the sum of its proper divisors (70125707).

12012010000009 is an equidigital number, since it uses as much as digits as its factorization.

12012010000009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70125706.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 12012010000009 in words is "twelve trillion, twelve billion, ten million, nine", and thus it is an aban number and an uban number.