111001111011012 has 12 divisors (see below), whose sum is σ = 259002592359056. Its totient is φ = 37000370337000.

The previous prime is 111001111011001. The next prime is 111001111011031. The reversal of 111001111011012 is 210110111100111.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 9250092584251 = 111001111011012 / (1 + 1 + 1 + 0 + 0 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 0 + 1 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4625046292114 + ... + 4625046292137.

Almost surely, 2^{111001111011012} is an apocalyptic number.

111001111011012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111001111011012 is an abundant number, since it is smaller than the sum of its proper divisors (148001481348044).

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

111001111011012 is a wasteful number, since it uses less digits than its factorization.

111001111011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9250092584258 (or 9250092584256 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 111001111011012 its reverse (210110111100111), we get a palindrome (321111222111123).

The spelling of 111001111011012 in words is "one hundred eleven trillion, one billion, one hundred eleven million, eleven thousand, twelve".