12108122 has 16 divisors (see below), whose sum is σ = 19765032. Its totient is φ = 5529600.

The previous prime is 12108113. The next prime is 12108133. The reversal of 12108122 is 22180121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8532241 + 3575881 = 2921^2 + 1891^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12108122.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 122 + ... + 4922.

Almost surely, 2^12108122 is an apocalyptic number.

12108122 is a deficient number, since it is larger than the sum of its proper divisors (7656910).

12108122 is a wasteful number, since it uses less digits than its factorization.

12108122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4913.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 12108122 is about 3479.6726857565. The cubic root of 12108122 is about 229.6283980503.

Adding to 12108122 its reverse (22180121), we get a palindrome (34288243).

The spelling of 12108122 in words is "twelve million, one hundred eight thousand, one hundred twenty-two".