12110221118 has 4 divisors (see below), whose sum is σ = 18165331680. Its totient is φ = 6055110558.

The previous prime is 12110221111. The next prime is 12110221141. The reversal of 12110221118 is 81112201121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12110221118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110221111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3027555278 + ... + 3027555281.

It is an arithmetic number, because the mean of its divisors is an integer number (4541332920).

Almost surely, 2^12110221118 is an apocalyptic number.

12110221118 is a deficient number, since it is larger than the sum of its proper divisors (6055110562).

12110221118 is an equidigital number, since it uses as much as digits as its factorization.

12110221118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6055110561.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 12110221118 its reverse (81112201121), we get a palindrome (93222422239).

The spelling of 12110221118 in words is "twelve billion, one hundred ten million, two hundred twenty-one thousand, one hundred eighteen".