224002213 has 4 divisors (see below), whose sum is σ = 224396460. Its totient is φ = 223607968.

The previous prime is 224002193. The next prime is 224002301. The reversal of 224002213 is 312200422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28058209 + 195944004 = 5297^2 + 13998^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224002213 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 (224002613) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 196270 + ... + 197407.

It is an arithmetic number, because the mean of its divisors is an integer number (56099115).

Almost surely, 2^224002213 is an apocalyptic number.

It is an amenable number.

224002213 is a deficient number, since it is larger than the sum of its proper divisors (394247).

224002213 is an equidigital number, since it uses as much as digits as its factorization.

224002213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394246.

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

The square root of 224002213 is about 14966.7034780542. The cubic root of 224002213 is about 607.3197943600.

Adding to 224002213 its reverse (312200422), we get a palindrome (536202635).

The spelling of 224002213 in words is "two hundred twenty-four million, two thousand, two hundred thirteen".