12000912111 has 12 divisors (see below), whose sum is σ = 17381888992. Its totient is φ = 7978805856.

The previous prime is 12000912073. The next prime is 12000912127. The reversal of 12000912111 is 11121900021.

It is a happy number.

It is not a de Polignac number, because 12000912111 - 2¹¹ = 12000910063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000912151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1813366 + ... + 1819971.

Almost surely, 2^12000912111 is an apocalyptic number.

12000912111 is a deficient number, since it is larger than the sum of its proper divisors (5380976881).

12000912111 is a wasteful number, since it uses less digits than its factorization.

12000912111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3633710 (or 3633707 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 12000912111 in words is "twelve billion, nine hundred twelve thousand, one hundred eleven".