12422000 has 40 divisors (see below), whose sum is σ = 30041232. Its totient is φ = 4968000.

The previous prime is 12421987. The next prime is 12422009. The reversal of 12422000 is 22421.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12422009) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1106 + ... + 5105.

Almost surely, 2^12422000 is an apocalyptic number.

12422000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12422000 is an abundant number, since it is smaller than the sum of its proper divisors (17619232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12422000 is an equidigital number, since it uses as much as digits as its factorization.

12422000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6234 (or 6218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 12422000 is about 3524.4857780959. The cubic root of 12422000 is about 231.5957088781.

Adding to 12422000 its reverse (22421), we get a palindrome (12444421).

The spelling of 12422000 in words is "twelve million, four hundred twenty-two thousand".