224012213 has 8 divisors (see below), whose sum is σ = 237346200. Its totient is φ = 210695680.

The previous prime is 224012209. The next prime is 224012267. The reversal of 224012213 is 312210422.

It can be written as a sum of positive squares in 4 ways, for example, as 129572689 + 94439524 = 11383^2 + 9718^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 224012213 - 2² = 224012209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 224012191 and 224012200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224012513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29753 + ... + 36513.

It is an arithmetic number, because the mean of its divisors is an integer number (29668275).

Almost surely, 2^224012213 is an apocalyptic number.

It is an amenable number.

224012213 is a deficient number, since it is larger than the sum of its proper divisors (13333987).

224012213 is a wasteful number, since it uses less digits than its factorization.

224012213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8727.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 224012213 is about 14967.0375492280. The cubic root of 224012213 is about 607.3288316332.

Adding to 224012213 its reverse (312210422), we get a palindrome (536222635).

The spelling of 224012213 in words is "two hundred twenty-four million, twelve thousand, two hundred thirteen".