12118027 has 4 divisors (see below), whose sum is σ = 12535920. Its totient is φ = 11700136.

The previous prime is 12118019. The next prime is 12118037. The reversal of 12118027 is 72081121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72081121 = 7 ⋅10297303.

It is a cyclic number.

It is not a de Polignac number, because 12118027 - 2³ = 12118019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12117989 and 12118007.

It is not an unprimeable number, because it can be changed into a prime (12118037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208903 + ... + 208960.

It is an arithmetic number, because the mean of its divisors is an integer number (3133980).

Almost surely, 2^12118027 is an apocalyptic number.

12118027 is a deficient number, since it is larger than the sum of its proper divisors (417893).

12118027 is an equidigital number, since it uses as much as digits as its factorization.

12118027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417892.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 12118027 is about 3481.0956608516. The cubic root of 12118027 is about 229.6909965099.

Adding to 12118027 its reverse (72081121), we get a palindrome (84199148).

The spelling of 12118027 in words is "twelve million, one hundred eighteen thousand, twenty-seven".