12011210202109 has 4 divisors (see below), whose sum is σ = 12014585089120. Its totient is φ = 12007835315100.

The previous prime is 12011210202097. The next prime is 12011210202137. The reversal of 12011210202109 is 90120201211021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12011210202109 - 2⁵ = 12011210202077 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 12011210202109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011210202169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1687438167 + ... + 1687445284.

It is an arithmetic number, because the mean of its divisors is an integer number (3003646272280).

Almost surely, 2^{12011210202109} is an apocalyptic number.

It is an amenable number.

12011210202109 is a deficient number, since it is larger than the sum of its proper divisors (3374887011).

12011210202109 is an equidigital number, since it uses as much as digits as its factorization.

12011210202109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374887010.

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

The spelling of 12011210202109 in words is "twelve trillion, eleven billion, two hundred ten million, two hundred two thousand, one hundred nine".