224112321 has 6 divisors (see below), whose sum is σ = 323717810. Its totient is φ = 149408208.

The previous prime is 224112313. The next prime is 224112323. The reversal of 224112321 is 123211422.

It is a happy number.

224112321 is a `hidden beast` number, since 22 + 411 + 232 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 187388721 + 36723600 = 13689^2 + 6060^2 .

It is not a de Polignac number, because 224112321 - 2³ = 224112313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 224112294 and 224112303.

It is not an unprimeable number, because it can be changed into a prime (224112323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12450676 + ... + 12450693.

Almost surely, 2^224112321 is an apocalyptic number.

It is an amenable number.

224112321 is a deficient number, since it is larger than the sum of its proper divisors (99605489).

224112321 is a wasteful number, since it uses less digits than its factorization.

224112321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24901375 (or 24901372 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 224112321 is about 14970.3814580658. The cubic root of 224112321 is about 607.4192871482.

Adding to 224112321 its reverse (123211422), we get a palindrome (347323743).

The spelling of 224112321 in words is "two hundred twenty-four million, one hundred twelve thousand, three hundred twenty-one".