12118222 has 8 divisors (see below), whose sum is σ = 18257400. Its totient is φ = 6032424.

The previous prime is 12118207. The next prime is 12118237. The reversal of 12118222 is 22281121.

It is an interprime number because it is at equal distance from previous prime (12118207) and next prime (12118237).

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

It is a self number, because there is not a number n which added to its sum of digits gives 12118222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12772 + ... + 13687.

It is an arithmetic number, because the mean of its divisors is an integer number (2282175).

Almost surely, 2^12118222 is an apocalyptic number.

12118222 is a deficient number, since it is larger than the sum of its proper divisors (6139178).

12118222 is a wasteful number, since it uses less digits than its factorization.

12118222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26690.

The product of its digits is 128, while the sum is 19.

The square root of 12118222 is about 3481.1236691620. The cubic root of 12118222 is about 229.6922285450.

Adding to 12118222 its reverse (22281121), we get a palindrome (34399343).

The spelling of 12118222 in words is "twelve million, one hundred eighteen thousand, two hundred twenty-two".