12118217214 has 64 divisors (see below), whose sum is σ = 25676386560. Its totient is φ = 3802256640.

The previous prime is 12118217213. The next prime is 12118217227. The reversal of 12118217214 is 41271281121.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12118217213) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 22153689 + ... + 22154235.

It is an arithmetic number, because the mean of its divisors is an integer number (401193540).

Almost surely, 2^12118217214 is an apocalyptic number.

12118217214 is an abundant number, since it is smaller than the sum of its proper divisors (13558169346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12118217214 is a wasteful number, since it uses less digits than its factorization.

12118217214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465.

The product of its digits is 1792, while the sum is 30.

Adding to 12118217214 its reverse (41271281121), we get a palindrome (53389498335).

The spelling of 12118217214 in words is "twelve billion, one hundred eighteen million, two hundred seventeen thousand, two hundred fourteen".