12011101112 has 32 divisors (see below), whose sum is σ = 22595706000. Its totient is φ = 5985617664.

The previous prime is 12011101111. The next prime is 12011101139. The reversal of 12011101112 is 21110111021.

It is a junction number, because it is equal to n+sod(n) for n = 12011101093 and 12011101102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011101111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3480764 + ... + 3484212.

Almost surely, 2^12011101112 is an apocalyptic number.

It is an amenable number.

12011101112 is a deficient number, since it is larger than the sum of its proper divisors (10584604888).

12011101112 is a wasteful number, since it uses less digits than its factorization.

12011101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4775 (or 4771 counting only the distinct ones).

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

Adding to 12011101112 its reverse (21110111021), we get a palindrome (33121212133).

Subtracting 12011101112 from its reverse (21110111021), we obtain a palindrome (9099009909).

The spelling of 12011101112 in words is "twelve billion, eleven million, one hundred one thousand, one hundred twelve".