12012111103116 has 24 divisors (see below), whose sum is σ = 28028329209664. Its totient is φ = 4004027038800.

The previous prime is 12012111103103. The next prime is 12012111103117. The reversal of 12012111103116 is 61130111121021.

It is a junction number, because it is equal to n+sod(n) for n = 12012111103092 and 12012111103101.

It is not an unprimeable number, because it can be changed into a prime (12012111103117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5013591 + ... + 7011441.

Almost surely, 2^{12012111103116} is an apocalyptic number.

It is an amenable number.

12012111103116 is an abundant number, since it is smaller than the sum of its proper divisors (16016218106548).

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

12012111103116 is a wasteful number, since it uses less digits than its factorization.

12012111103116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498901 (or 2498899 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 21.

Adding to 12012111103116 its reverse (61130111121021), we get a palindrome (73142222224137).

The spelling of 12012111103116 in words is "twelve trillion, twelve billion, one hundred eleven million, one hundred three thousand, one hundred sixteen".