12120271406 has 8 divisors (see below), whose sum is σ = 18970859664. Its totient is φ = 5796651520.

The previous prime is 12120271369. The next prime is 12120271409. The reversal of 12120271406 is 60417202121.

12120271406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120271409) 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 3 ways as a sum of consecutive naturals, for example, 131742035 + ... + 131742126.

It is an arithmetic number, because the mean of its divisors is an integer number (2371357458).

Almost surely, 2^12120271406 is an apocalyptic number.

12120271406 is a deficient number, since it is larger than the sum of its proper divisors (6850588258).

12120271406 is a wasteful number, since it uses less digits than its factorization.

12120271406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263484186.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 12120271406 its reverse (60417202121), we get a palindrome (72537473527).

The spelling of 12120271406 in words is "twelve billion, one hundred twenty million, two hundred seventy-one thousand, four hundred six".