12012202010209 has 4 divisors (see below), whose sum is σ = 12426415872660. Its totient is φ = 11597988147760.

The previous prime is 12012202010177. The next prime is 12012202010239. The reversal of 12012202010209 is 90201020221021.

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 10312576142400 + 1699625867809 = 3211320^2 + 1303697^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012202010209 - 2⁵ = 12012202010177 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 12012202010209.

It is not an unprimeable number, because it can be changed into a prime (12012202010239) 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, 207106931182 + ... + 207106931239.

It is an arithmetic number, because the mean of its divisors is an integer number (3106603968165).

Almost surely, 2^{12012202010209} is an apocalyptic number.

It is an amenable number.

12012202010209 is a deficient number, since it is larger than the sum of its proper divisors (414213862451).

12012202010209 is an equidigital number, since it uses as much as digits as its factorization.

12012202010209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414213862450.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 12012202010209 in words is "twelve trillion, twelve billion, two hundred two million, ten thousand, two hundred nine".