12422231 has 8 divisors (see below), whose sum is σ = 13146624. Its totient is φ = 11713240.

The previous prime is 12422209. The next prime is 12422243. The reversal of 12422231 is 13222421.

12422231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12422231 is a prime.

It is a super-2 number, since 2×12422231² = 308623646034722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12422281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2171 + ... + 5436.

It is an arithmetic number, because the mean of its divisors is an integer number (1643328).

Almost surely, 2^12422231 is an apocalyptic number.

12422231 is a deficient number, since it is larger than the sum of its proper divisors (724393).

12422231 is an equidigital number, since it uses as much as digits as its factorization.

12422231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7701.

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

The square root of 12422231 is about 3524.5185486815. The cubic root of 12422231 is about 231.5971444569.

Adding to 12422231 its reverse (13222421), we get a palindrome (25644652).

The spelling of 12422231 in words is "twelve million, four hundred twenty-two thousand, two hundred thirty-one".