12000011112 has 64 divisors (see below), whose sum is σ = 33962328000. Its totient is φ = 3924528192.

The previous prime is 12000011087. The next prime is 12000011113. The reversal of 12000011112 is 21111000021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12000011094 and 12000011103.

It is not an unprimeable number, because it can be changed into a prime (12000011113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512662 + ... + 535557.

It is an arithmetic number, because the mean of its divisors is an integer number (530661375).

Almost surely, 2^12000011112 is an apocalyptic number.

12000011112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12000011112 is an abundant number, since it is smaller than the sum of its proper divisors (21962316888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12000011112 is a wasteful number, since it uses less digits than its factorization.

12000011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048287 (or 1048277 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12000011112 its reverse (21111000021), we get a palindrome (33111011133).

The spelling of 12000011112 in words is "twelve billion, eleven thousand, one hundred twelve".