12112201001209 has 8 divisors (see below), whose sum is σ = 12260829871080. Its totient is φ = 11963850725376.

The previous prime is 12112201001167. The next prime is 12112201001221. The reversal of 12112201001209 is 90210010221121.

It can be written as a sum of positive squares in 4 ways, for example, as 516677752809 + 11595523248400 = 718803^2 + 3405220^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12112201001209 - 2¹⁹ = 12112200476921 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 12112201001209.

It is not an unprimeable number, because it can be changed into a prime (12112201004209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69561024 + ... + 69734929.

It is an arithmetic number, because the mean of its divisors is an integer number (1532603733885).

Almost surely, 2^{12112201001209} is an apocalyptic number.

It is an amenable number.

12112201001209 is a deficient number, since it is larger than the sum of its proper divisors (148628869871).

12112201001209 is an equidigital number, since it uses as much as digits as its factorization.

12112201001209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139297019.

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

The spelling of 12112201001209 in words is "twelve trillion, one hundred twelve billion, two hundred one million, one thousand, two hundred nine".