12111014209 has 4 divisors (see below), whose sum is σ = 13841159104. Its totient is φ = 10380869316.

The previous prime is 12111014207. The next prime is 12111014239. The reversal of 12111014209 is 90241011121.

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 12111014209 - 2¹ = 12111014207 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 12111014209.

It is not an unprimeable number, because it can be changed into a prime (12111014203) 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, 865072437 + ... + 865072450.

It is an arithmetic number, because the mean of its divisors is an integer number (3460289776).

Almost surely, 2^12111014209 is an apocalyptic number.

It is an amenable number.

12111014209 is a deficient number, since it is larger than the sum of its proper divisors (1730144895).

12111014209 is an equidigital number, since it uses as much as digits as its factorization.

12111014209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730144894.

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

The spelling of 12111014209 in words is "twelve billion, one hundred eleven million, fourteen thousand, two hundred nine".