12000255111 has 64 divisors (see below), whose sum is σ = 19416445440. Its totient is φ = 7281135360.

The previous prime is 12000255097. The next prime is 12000255139. The reversal of 12000255111 is 11155200021.

12000255111 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 12000255111 - 2⁷ = 12000254983 is a prime.

It is a super-2 number, since 2×12000255111² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000259111) 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 63 ways as a sum of consecutive naturals, for example, 7837416 + ... + 7838946.

It is an arithmetic number, because the mean of its divisors is an integer number (303381960).

Almost surely, 2^12000255111 is an apocalyptic number.

12000255111 is a deficient number, since it is larger than the sum of its proper divisors (7416190329).

12000255111 is a wasteful number, since it uses less digits than its factorization.

12000255111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853 (or 1847 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

Adding to 12000255111 its reverse (11155200021), we get a palindrome (23155455132).

The spelling of 12000255111 in words is "twelve billion, two hundred fifty-five thousand, one hundred eleven".