12112122031 has 4 divisors (see below), whose sum is σ = 12112342792. Its totient is φ = 12111901272.

The previous prime is 12112122019. The next prime is 12112122083. The reversal of 12112122031 is 13022121121.

12112122031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12112122031 - 2⁹ = 12112121519 is a prime.

It is a super-2 number, since 2×12112122031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12112121996 and 12112122014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112122131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42496 + ... + 161338.

It is an arithmetic number, because the mean of its divisors is an integer number (3028085698).

Almost surely, 2^12112122031 is an apocalyptic number.

12112122031 is a deficient number, since it is larger than the sum of its proper divisors (220761).

12112122031 is a wasteful number, since it uses less digits than its factorization.

12112122031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220760.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12112122031 its reverse (13022121121), we get a palindrome (25134243152).

The spelling of 12112122031 in words is "twelve billion, one hundred twelve million, one hundred twenty-two thousand, thirty-one".