12254422 has 4 divisors (see below), whose sum is σ = 18381636. Its totient is φ = 6127210.

The previous prime is 12254419. The next prime is 12254447. The reversal of 12254422 is 22445221.

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 = 12254393 and 12254402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3063604 + ... + 3063607.

It is an arithmetic number, because the mean of its divisors is an integer number (4595409).

Almost surely, 2^12254422 is an apocalyptic number.

12254422 is a deficient number, since it is larger than the sum of its proper divisors (6127214).

12254422 is an equidigital number, since it uses as much as digits as its factorization.

12254422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6127213.

The product of its digits is 1280, while the sum is 22.

The square root of 12254422 is about 3500.6316572870. The cubic root of 12254422 is about 230.5495491562.

Adding to 12254422 its reverse (22445221), we get a palindrome (34699643).

The spelling of 12254422 in words is "twelve million, two hundred fifty-four thousand, four hundred twenty-two".