111111001100012 has 12 divisors (see below), whose sum is σ = 194454326369856. Its totient is φ = 55552622137200.

The previous prime is 111111001099999. The next prime is 111111001100063. The reversal of 111111001100012 is 210001100111111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111111001099966 and 111111001100002.

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, 719516348 + ... + 719670755.

It is an arithmetic number, because the mean of its divisors is an integer number (16204527197488).

Almost surely, 2^{111111001100012} is an apocalyptic number.

It is an amenable number.

111111001100012 is a deficient number, since it is larger than the sum of its proper divisors (83343325269844).

111111001100012 is a wasteful number, since it uses less digits than its factorization.

111111001100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439206408 (or 1439206406 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 111111001100012 its reverse (210001100111111), we get a palindrome (321112101211123).

The spelling of 111111001100012 in words is "one hundred eleven trillion, one hundred eleven billion, one million, one hundred thousand, twelve".