12009622 has 4 divisors (see below), whose sum is σ = 18014436. Its totient is φ = 6004810.

The previous prime is 12009593. The next prime is 12009623. The reversal of 12009622 is 22690021.

It is a happy number.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 12009593 and 12009602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12009623) by changing a digit.

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 as a sum of consecutive naturals, namely, 3002404 + ... + 3002407.

It is an arithmetic number, because the mean of its divisors is an integer number (4503609).

Almost surely, 2^12009622 is an apocalyptic number.

12009622 is a deficient number, since it is larger than the sum of its proper divisors (6004814).

12009622 is an equidigital number, since it uses as much as digits as its factorization.

12009622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6004813.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 12009622 is about 3465.4901529221. The cubic root of 12009622 is about 229.0040234987.

Adding to 12009622 its reverse (22690021), we get a palindrome (34699643).

The spelling of 12009622 in words is "twelve million, nine thousand, six hundred twenty-two".