12224143 has 4 divisors (see below), whose sum is σ = 12342928. Its totient is φ = 12105360.

The previous prime is 12224129. The next prime is 12224153. The reversal of 12224143 is 34142221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34142221 = 19 ⋅1796959.

It is a cyclic number.

It is not a de Polignac number, because 12224143 - 2¹⁷ = 12093071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12224143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12224153) 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 3 ways as a sum of consecutive naturals, for example, 59238 + ... + 59443.

It is an arithmetic number, because the mean of its divisors is an integer number (3085732).

Almost surely, 2^12224143 is an apocalyptic number.

12224143 is a deficient number, since it is larger than the sum of its proper divisors (118785).

12224143 is a wasteful number, since it uses less digits than its factorization.

12224143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118784.

The product of its digits is 384, while the sum is 19.

The square root of 12224143 is about 3496.3041915714. The cubic root of 12224143 is about 230.3595070841.

Adding to 12224143 its reverse (34142221), we get a palindrome (46366364).

The spelling of 12224143 in words is "twelve million, two hundred twenty-four thousand, one hundred forty-three".