12101211112 has 16 divisors (see below), whose sum is σ = 23883969600. Its totient is φ = 5732152560.

The previous prime is 12101211091. The next prime is 12101211127. The reversal of 12101211112 is 21111210121.

It is a happy number.

12101211112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12101211092 and 12101211101.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 39806464 + ... + 39806767.

It is an arithmetic number, because the mean of its divisors is an integer number (1492748100).

Almost surely, 2^12101211112 is an apocalyptic number.

It is an amenable number.

12101211112 is a deficient number, since it is larger than the sum of its proper divisors (11782758488).

12101211112 is a wasteful number, since it uses less digits than its factorization.

12101211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79613256 (or 79613252 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12101211112 its reverse (21111210121), we get a palindrome (33212421233).

Subtracting 12101211112 from its reverse (21111210121), we obtain a palindrome (9009999009).

The spelling of 12101211112 in words is "twelve billion, one hundred one million, two hundred eleven thousand, one hundred twelve".