12120001002112 has 32 divisors (see below), whose sum is σ = 24167325090420. Its totient is φ = 6054476273664.

The previous prime is 12120001002049. The next prime is 12120001002127. The reversal of 12120001002112 is 21120010002121.

It can be written as a sum of positive squares in 2 ways, for example, as 12016095347776 + 103905654336 = 3466424^2 + 322344^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 12120001002092 and 12120001002101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43017063 + ... + 43297894.

Almost surely, 2^{12120001002112} is an apocalyptic number.

It is an amenable number.

12120001002112 is a deficient number, since it is larger than the sum of its proper divisors (12047324088308).

12120001002112 is an equidigital number, since it uses as much as digits as its factorization.

12120001002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86316068 (or 86316056 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12120001002112 its reverse (21120010002121), we get a palindrome (33240011004233).

Subtracting 12120001002112 from its reverse (21120010002121), we obtain a palindrome (9000009000009).

The spelling of 12120001002112 in words is "twelve trillion, one hundred twenty billion, one million, two thousand, one hundred twelve".