12120220118 has 16 divisors (see below), whose sum is σ = 19139965440. Its totient is φ = 5740324200.

The previous prime is 12120220117. The next prime is 12120220153. The reversal of 12120220118 is 81102202121.

It is a self number, because there is not a number n which added to its sum of digits gives 12120220118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120220117) 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 7 ways as a sum of consecutive naturals, for example, 301463 + ... + 339293.

It is an arithmetic number, because the mean of its divisors is an integer number (1196247840).

Almost surely, 2^12120220118 is an apocalyptic number.

12120220118 is a deficient number, since it is larger than the sum of its proper divisors (7019745322).

12120220118 is a wasteful number, since it uses less digits than its factorization.

12120220118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46283.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12120220118 its reverse (81102202121), we get a palindrome (93222422239).

The spelling of 12120220118 in words is "twelve billion, one hundred twenty million, two hundred twenty thousand, one hundred eighteen".