12224461 has 4 divisors (see below), whose sum is σ = 12424924. Its totient is φ = 12024000.

The previous prime is 12224413. The next prime is 12224473. The reversal of 12224461 is 16442221.

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: 16442221 = 181 ⋅90841.

It can be written as a sum of positive squares in 2 ways, for example, as 1946025 + 10278436 = 1395^2 + 3206^2 .

It is a cyclic number.

It is not a de Polignac number, because 12224461 - 2¹⁵ = 12191693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12224561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100140 + ... + 100261.

It is an arithmetic number, because the mean of its divisors is an integer number (3106231).

Almost surely, 2^12224461 is an apocalyptic number.

It is an amenable number.

12224461 is a deficient number, since it is larger than the sum of its proper divisors (200463).

12224461 is an equidigital number, since it uses as much as digits as its factorization.

12224461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200462.

The product of its digits is 768, while the sum is 22.

The square root of 12224461 is about 3496.3496678679. The cubic root of 12224461 is about 230.3615045980.

Adding to 12224461 its reverse (16442221), we get a palindrome (28666682).

The spelling of 12224461 in words is "twelve million, two hundred twenty-four thousand, four hundred sixty-one".