23201224 has 16 divisors (see below), whose sum is σ = 43821900. Its totient is φ = 11515392.

The previous prime is 23201197. The next prime is 23201251. The reversal of 23201224 is 42210232.

It is an interprime number because it is at equal distance from previous prime (23201197) and next prime (23201251).

It can be written as a sum of positive squares in 2 ways, for example, as 20412324 + 2788900 = 4518^2 + 1670^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23201198 and 23201207.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9489 + ... + 11680.

Almost surely, 2^23201224 is an apocalyptic number.

It is an amenable number.

23201224 is a deficient number, since it is larger than the sum of its proper divisors (20620676).

23201224 is a wasteful number, since it uses less digits than its factorization.

23201224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21312 (or 21308 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 23201224 is about 4816.7648894253. The cubic root of 23201224 is about 285.2136450782.

Adding to 23201224 its reverse (42210232), we get a palindrome (65411456).

The spelling of 23201224 in words is "twenty-three million, two hundred one thousand, two hundred twenty-four".