12224351 has 4 divisors (see below), whose sum is σ = 12406872. Its totient is φ = 12041832.

The previous prime is 12224347. The next prime is 12224357. The reversal of 12224351 is 15342221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15342221 = 1933 ⋅7937.

It is a cyclic number.

It is not a de Polignac number, because 12224351 - 2² = 12224347 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 (12224357) 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, 91160 + ... + 91293.

It is an arithmetic number, because the mean of its divisors is an integer number (3101718).

Almost surely, 2^12224351 is an apocalyptic number.

12224351 is a deficient number, since it is larger than the sum of its proper divisors (182521).

12224351 is an equidigital number, since it uses as much as digits as its factorization.

12224351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182520.

The product of its digits is 480, while the sum is 20.

The square root of 12224351 is about 3496.3339371404. Note that the first 3 decimals coincide. The cubic root of 12224351 is about 230.3608136380.

Adding to 12224351 its reverse (15342221), we get a palindrome (27566572).

The spelling of 12224351 in words is "twelve million, two hundred twenty-four thousand, three hundred fifty-one".