12112010111 has 4 divisors (see below), whose sum is σ = 12824481312. Its totient is φ = 11399538912.

The previous prime is 12112010083. The next prime is 12112010147. The reversal of 12112010111 is 11101021121.

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 12112010111 - 2¹⁴ = 12111993727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12112010092 and 12112010101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112010311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356235575 + ... + 356235608.

It is an arithmetic number, because the mean of its divisors is an integer number (3206120328).

Almost surely, 2^12112010111 is an apocalyptic number.

12112010111 is a deficient number, since it is larger than the sum of its proper divisors (712471201).

12112010111 is an equidigital number, since it uses as much as digits as its factorization.

12112010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712471200.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12112010111 its reverse (11101021121), we get a palindrome (23213031232).

The spelling of 12112010111 in words is "twelve billion, one hundred twelve million, ten thousand, one hundred eleven".