111112100012 has 12 divisors (see below), whose sum is σ = 194493733896. Its totient is φ = 55542461760.

The previous prime is 111112100009. The next prime is 111112100101. The reversal of 111112100012 is 210001211111.

It is a junction number, because it is equal to n+sod(n) for n = 111112099966 and 111112100002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3378653 + ... + 3411380.

It is an arithmetic number, because the mean of its divisors is an integer number (16207811158).

Almost surely, 2^111112100012 is an apocalyptic number.

It is an amenable number.

111112100012 is a deficient number, since it is larger than the sum of its proper divisors (83381633884).

111112100012 is a wasteful number, since it uses less digits than its factorization.

111112100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6794128 (or 6794126 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111112100012 its reverse (210001211111), we get a palindrome (321113311123).

It can be divided in two parts, 11111 and 2100012, that multiplied together give a palindrome (23333233332).

The spelling of 111112100012 in words is "one hundred eleven billion, one hundred twelve million, one hundred thousand, twelve".