111010101111012 has 24 divisors (see below), whose sum is σ = 265341217290912. Its totient is φ = 36100845889600.

The previous prime is 111010101110933. The next prime is 111010101111029. The reversal of 111010101111012 is 210111101010111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112815142914 + ... + 112815143897.

It is an arithmetic number, because the mean of its divisors is an integer number (11055884053788).

Almost surely, 2^{111010101111012} is an apocalyptic number.

111010101111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111010101111012 is an abundant number, since it is smaller than the sum of its proper divisors (154331116179900).

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

111010101111012 is a wasteful number, since it uses less digits than its factorization.

111010101111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225630286859 (or 225630286857 counting only the distinct ones).

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

Adding to 111010101111012 its reverse (210111101010111), we get a palindrome (321121202121123).

The spelling of 111010101111012 in words is "one hundred eleven trillion, ten billion, one hundred one million, one hundred eleven thousand, twelve".