12112121043 has 12 divisors (see below), whose sum is σ = 19085766648. Its totient is φ = 7340679360.

The previous prime is 12112121029. The next prime is 12112121059. The reversal of 12112121043 is 34012121121.

12112121043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12112121043 - 2¹⁷ = 12111989971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12112121743) 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 11 ways as a sum of consecutive naturals, for example, 61172230 + ... + 61172427.

It is an arithmetic number, because the mean of its divisors is an integer number (1590480554).

Almost surely, 2^12112121043 is an apocalyptic number.

12112121043 is a deficient number, since it is larger than the sum of its proper divisors (6973645605).

12112121043 is a wasteful number, since it uses less digits than its factorization.

12112121043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122344674 (or 122344671 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12112121043 its reverse (34012121121), we get a palindrome (46124242164).

The spelling of 12112121043 in words is "twelve billion, one hundred twelve million, one hundred twenty-one thousand, forty-three".