12112002111 has 12 divisors (see below), whose sum is σ = 17750923736. Its totient is φ = 7340607120.

The previous prime is 12112002103. The next prime is 12112002127. The reversal of 12112002111 is 11120021121.

It is not a de Polignac number, because 12112002111 - 2³ = 12112002103 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 (12112002011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16682836 + ... + 16683561.

Almost surely, 2^12112002111 is an apocalyptic number.

12112002111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12112002111 is a deficient number, since it is larger than the sum of its proper divisors (5638921625).

12112002111 is a wasteful number, since it uses less digits than its factorization.

12112002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33366422 (or 33366411 counting only the distinct ones).

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

Adding to 12112002111 its reverse (11120021121), we get a palindrome (23232023232).

It can be divided in two parts, 1 and 2112002111, that added together give a palindrome (2112002112).

The spelling of 12112002111 in words is "twelve billion, one hundred twelve million, two thousand, one hundred eleven".