224020213 has 2 divisors, whose sum is σ = 224020214. Its totient is φ = 224020212.

The previous prime is 224020211. The next prime is 224020217. The reversal of 224020213 is 312020422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210308004 + 13712209 = 14502^2 + 3703^2 .

It is a cyclic number.

It is not a de Polignac number, because 224020213 - 2¹ = 224020211 is a prime.

Together with 224020211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224020211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112010106 + 112010107.

It is an arithmetic number, because the mean of its divisors is an integer number (112010107).

Almost surely, 2^224020213 is an apocalyptic number.

It is an amenable number.

224020213 is a deficient number, since it is larger than the sum of its proper divisors (1).

224020213 is an equidigital number, since it uses as much as digits as its factorization.

224020213 is an evil number, because the sum of its binary digits is even.

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

The square root of 224020213 is about 14967.3048007983. The cubic root of 224020213 is about 607.3360612581.

Adding to 224020213 its reverse (312020422), we get a palindrome (536040635).

The spelling of 224020213 in words is "two hundred twenty-four million, twenty thousand, two hundred thirteen".