12112020111 has 4 divisors (see below), whose sum is σ = 16149360152. Its totient is φ = 8074680072.

The previous prime is 12112020061. The next prime is 12112020119. The reversal of 12112020111 is 11102021121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11102021121 = 3 ⋅3700673707.

It is not a de Polignac number, because 12112020111 - 2⁶ = 12112020047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112020119) 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 3 ways as a sum of consecutive naturals, for example, 2018670016 + ... + 2018670021.

It is an arithmetic number, because the mean of its divisors is an integer number (4037340038).

Almost surely, 2^12112020111 is an apocalyptic number.

12112020111 is a deficient number, since it is larger than the sum of its proper divisors (4037340041).

12112020111 is an equidigital number, since it uses as much as digits as its factorization.

12112020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037340040.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12112020111 its reverse (11102021121), we get a palindrome (23214041232).

The spelling of 12112020111 in words is "twelve billion, one hundred twelve million, twenty thousand, one hundred eleven".