12012001011112 has 32 divisors (see below), whose sum is σ = 23133726538920. Its totient is φ = 5843042472960.

The previous prime is 12012001011077. The next prime is 12012001011119. The reversal of 12012001011112 is 21111010021021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10855614785796 + 1156386225316 = 3294786^2 + 1075354^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12012001011092 and 12012001011101.

It is not an unprimeable number, because it can be changed into a prime (12012001011119) 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, 539628 + ... + 4931044.

Almost surely, 2^{12012001011112} is an apocalyptic number.

It is an amenable number.

12012001011112 is a deficient number, since it is larger than the sum of its proper divisors (11121725527808).

12012001011112 is a wasteful number, since it uses less digits than its factorization.

12012001011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400701 (or 4400697 counting only the distinct ones).

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

Adding to 12012001011112 its reverse (21111010021021), we get a palindrome (33123011032133).

Subtracting 12012001011112 from its reverse (21111010021021), we obtain a palindrome (9099009009909).

The spelling of 12012001011112 in words is "twelve trillion, twelve billion, one million, eleven thousand, one hundred twelve".