12126227912 has 12 divisors (see below), whose sum is σ = 22737261345. Its totient is φ = 6062958224.

The previous prime is 12126227851. The next prime is 12126227917. The reversal of 12126227912 is 21972262121.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

12126227912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6497327236 + 5628900676 = 80606^2 + 75026^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=77866.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12126227917) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 291998 + ... + 330930.

Almost surely, 2^12126227912 is an apocalyptic number.

It is an amenable number.

12126227912 is a deficient number, since it is larger than the sum of its proper divisors (10611033433).

12126227912 is an frugal number, since it uses more digits than its factorization.

12126227912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77872 (or 38935 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The spelling of 12126227912 in words is "twelve billion, one hundred twenty-six million, two hundred twenty-seven thousand, nine hundred twelve".