12227422 has 4 divisors (see below), whose sum is σ = 18341136. Its totient is φ = 6113710.

The previous prime is 12227419. The next prime is 12227429. The reversal of 12227422 is 22472221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22472221 = 293 ⋅76697.

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 = 12227393 and 12227402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12227429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3056854 + ... + 3056857.

It is an arithmetic number, because the mean of its divisors is an integer number (4585284).

Almost surely, 2^12227422 is an apocalyptic number.

12227422 is a deficient number, since it is larger than the sum of its proper divisors (6113714).

12227422 is an equidigital number, since it uses as much as digits as its factorization.

12227422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6113713.

The product of its digits is 896, while the sum is 22.

The square root of 12227422 is about 3496.7730838589. The cubic root of 12227422 is about 230.3801024282.

Adding to 12227422 its reverse (22472221), we get a palindrome (34699643).

The spelling of 12227422 in words is "twelve million, two hundred twenty-seven thousand, four hundred twenty-two".