12001112111 has 8 divisors (see below), whose sum is σ = 12050918880. Its totient is φ = 11951366112.

The previous prime is 12001112099. The next prime is 12001112153. The reversal of 12001112111 is 11121110021.

12001112111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12001112111 - 2¹⁴ = 12001095727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001112092 and 12001112101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001112191) 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 7 ways as a sum of consecutive naturals, for example, 404366 + ... + 433028.

It is an arithmetic number, because the mean of its divisors is an integer number (1506364860).

Almost surely, 2^12001112111 is an apocalyptic number.

12001112111 is a deficient number, since it is larger than the sum of its proper divisors (49806769).

12001112111 is a wasteful number, since it uses less digits than its factorization.

12001112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30385.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12001112111 its reverse (11121110021), we get a palindrome (23122222132).

The spelling of 12001112111 in words is "twelve billion, one million, one hundred twelve thousand, one hundred eleven".