111111111000010 has 64 divisors (see below), whose sum is σ = 225720383011200. Its totient is φ = 39008195654400.

The previous prime is 111111110999891. The next prime is 111111111000023. The reversal of 111111111000010 is 10000111111111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

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 31 ways as a sum of consecutive naturals, for example, 46986256 + ... + 49294324.

It is an arithmetic number, because the mean of its divisors is an integer number (3526880984550).

Almost surely, 2^{111111111000010} is an apocalyptic number.

111111111000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111111111000010 is an abundant number, since it is smaller than the sum of its proper divisors (114609272011190).

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

111111111000010 is a wasteful number, since it uses less digits than its factorization.

111111111000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323207.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 111111111000010 its reverse (10000111111111), we get a palindrome (121111222111121).

It can be divided in two parts, 11111111 and 1000010, that added together give a palindrome (12111121).

The spelling of 111111111000010 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred eleven million, ten", and thus it is an aban number.