12189122 has 8 divisors (see below), whose sum is σ = 19945872. Its totient is φ = 5540500.

The previous prime is 12189097. The next prime is 12189139. The reversal of 12189122 is 22198121.

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

It is a junction number, because it is equal to n+sod(n) for n = 12189091 and 12189100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277004 + ... + 277047.

It is an arithmetic number, because the mean of its divisors is an integer number (2493234).

Almost surely, 2^12189122 is an apocalyptic number.

12189122 is a deficient number, since it is larger than the sum of its proper divisors (7756750).

12189122 is a wasteful number, since it uses less digits than its factorization.

12189122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554064.

The product of its digits is 576, while the sum is 26.

The square root of 12189122 is about 3491.2923108786. The cubic root of 12189122 is about 230.1393106877.

The spelling of 12189122 in words is "twelve million, one hundred eighty-nine thousand, one hundred twenty-two".