12101011011112 has 16 divisors (see below), whose sum is σ = 22689508016340. Its totient is φ = 6050475540096.

The previous prime is 12101011011083. The next prime is 12101011011137. The reversal of 12101011011112 is 21111011010121.

It can be written as a sum of positive squares in 2 ways, for example, as 11051808229476 + 1049202781636 = 3324426^2 + 1024306^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12101011011092 and 12101011011101.

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, 1980463 + ... + 5303230.

Almost surely, 2^{12101011011112} is an apocalyptic number.

It is an amenable number.

12101011011112 is a deficient number, since it is larger than the sum of its proper divisors (10588497005228).

12101011011112 is a wasteful number, since it uses less digits than its factorization.

12101011011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7491372 (or 7491368 counting only the distinct ones).

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

Adding to 12101011011112 its reverse (21111011010121), we get a palindrome (33212022021233).

Subtracting 12101011011112 from its reverse (21111011010121), we obtain a palindrome (9009999999009).

The spelling of 12101011011112 in words is "twelve trillion, one hundred one billion, eleven million, eleven thousand, one hundred twelve".