1111111012012 has 48 divisors (see below), whose sum is σ = 2123760441600. Its totient is φ = 506631343680.

The previous prime is 1111111012009. The next prime is 1111111012019. The reversal of 1111111012012 is 2102101111111.

It is a junction number, because it is equal to n+sod(n) for n = 1111111011983 and 1111111012001.

It is not an unprimeable number, because it can be changed into a prime (1111111012019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32008 + ... + 1491055.

It is an arithmetic number, because the mean of its divisors is an integer number (44245009200).

Almost surely, 2^{1111111012012} is an apocalyptic number.

It is an amenable number.

1111111012012 is a deficient number, since it is larger than the sum of its proper divisors (1012649429588).

1111111012012 is a wasteful number, since it uses less digits than its factorization.

1111111012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523446 (or 1523444 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1111111012012 its reverse (2102101111111), we get a palindrome (3213212123123).

Subtracting 1111111012012 from its reverse (2102101111111), we obtain a palindrome (990990099099).

The spelling of 1111111012012 in words is "one trillion, one hundred eleven billion, one hundred eleven million, twelve thousand, twelve".