12111334211 has 4 divisors (see below), whose sum is σ = 12174087432. Its totient is φ = 12048580992.

The previous prime is 12111334201. The next prime is 12111334219. The reversal of 12111334211 is 11243311121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12111334211 - 2¹⁰ = 12111333187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111334219) 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, 31376321 + ... + 31376706.

It is an arithmetic number, because the mean of its divisors is an integer number (3043521858).

Almost surely, 2^12111334211 is an apocalyptic number.

12111334211 is a deficient number, since it is larger than the sum of its proper divisors (62753221).

12111334211 is an equidigital number, since it uses as much as digits as its factorization.

12111334211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62753220.

The product of its digits is 144, while the sum is 20.

Adding to 12111334211 its reverse (11243311121), we get a palindrome (23354645332).

The spelling of 12111334211 in words is "twelve billion, one hundred eleven million, three hundred thirty-four thousand, two hundred eleven".