12111112012 has 48 divisors (see below), whose sum is σ = 22647996000. Its totient is φ = 5650145280.

The previous prime is 12111112007. The next prime is 12111112033. The reversal of 12111112012 is 21021111121.

It is a happy number.

12111112012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12111111983 and 12111112001.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5818812 + ... + 5820892.

It is an arithmetic number, because the mean of its divisors is an integer number (471833250).

Almost surely, 2^12111112012 is an apocalyptic number.

It is an amenable number.

12111112012 is a deficient number, since it is larger than the sum of its proper divisors (10536883988).

12111112012 is a wasteful number, since it uses less digits than its factorization.

12111112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226 (or 3224 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12111112012 its reverse (21021111121), we get a palindrome (33132223133).

The spelling of 12111112012 in words is "twelve billion, one hundred eleven million, one hundred twelve thousand, twelve".