11111012110012 has 24 divisors (see below), whose sum is σ = 20289819898656. Its totient is φ = 5313924177408.

The previous prime is 11111012110001. The next prime is 11111012110031. The reversal of 11111012110012 is 21001121011111.

It is a junction number, because it is equal to n+sod(n) for n = 11111012109974 and 11111012110001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15703908 + ... + 16396180.

It is an arithmetic number, because the mean of its divisors is an integer number (845409162444).

Almost surely, 2^{11111012110012} is an apocalyptic number.

It is an amenable number.

11111012110012 is a deficient number, since it is larger than the sum of its proper divisors (9178807788644).

11111012110012 is a wasteful number, since it uses less digits than its factorization.

11111012110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866757 (or 866755 counting only the distinct ones).

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

Adding to 11111012110012 its reverse (21001121011111), we get a palindrome (32112133121123).

The spelling of 11111012110012 in words is "eleven trillion, one hundred eleven billion, twelve million, one hundred ten thousand, twelve".