224212 has 6 divisors (see below), whose sum is σ = 392378. Its totient is φ = 112104.

The previous prime is 224209. The next prime is 224221. The reversal of 224212 is 212422.

It can be written as a sum of positive squares in only one way, i.e., 217156 + 7056 = 466^2 + 84^2 .

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 224192 and 224201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28023 + ... + 28030.

2²²⁴²¹² is an apocalyptic number.

It is an amenable number.

224212 is a deficient number, since it is larger than the sum of its proper divisors (168166).

224212 is a wasteful number, since it uses less digits than its factorization.

224212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56057 (or 56055 counting only the distinct ones).

The product of its digits is 64, while the sum is 13.

The square root of 224212 is about 473.5102955586. The cubic root of 224212 is about 60.7509328268.

Adding to 224212 its reverse (212422), we get a palindrome (436634).

The spelling of 224212 in words is "two hundred twenty-four thousand, two hundred twelve", and thus it is an iban number.