12006422 has 4 divisors (see below), whose sum is σ = 18009636. Its totient is φ = 6003210.

The previous prime is 12006409. The next prime is 12006427. The reversal of 12006422 is 22460021.

12006422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12006422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12006427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3001604 + ... + 3001607.

It is an arithmetic number, because the mean of its divisors is an integer number (4502409).

Almost surely, 2^12006422 is an apocalyptic number.

12006422 is a deficient number, since it is larger than the sum of its proper divisors (6003214).

12006422 is an equidigital number, since it uses as much as digits as its factorization.

12006422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6003213.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12006422 is about 3465.0284270118. The cubic root of 12006422 is about 228.9836820876.

Adding to 12006422 its reverse (22460021), we get a palindrome (34466443).

The spelling of 12006422 in words is "twelve million, six thousand, four hundred twenty-two".