223022213 has 4 divisors (see below), whose sum is σ = 223088940. Its totient is φ = 222955488.

The previous prime is 223022207. The next prime is 223022221. The reversal of 223022213 is 312220322.

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 133587364 + 89434849 = 11558^2 + 9457^2 .

It is a cyclic number.

It is not a de Polignac number, because 223022213 - 2⁴ = 223022197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223022191 and 223022200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223022713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28070 + ... + 35127.

It is an arithmetic number, because the mean of its divisors is an integer number (55772235).

Almost surely, 2^223022213 is an apocalyptic number.

It is an amenable number.

223022213 is a deficient number, since it is larger than the sum of its proper divisors (66727).

223022213 is an equidigital number, since it uses as much as digits as its factorization.

223022213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66726.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 223022213 is about 14933.9282507986. The cubic root of 223022213 is about 606.4328336780.

Adding to 223022213 its reverse (312220322), we get a palindrome (535242535).

The spelling of 223022213 in words is "two hundred twenty-three million, twenty-two thousand, two hundred thirteen".