223030221 has 8 divisors (see below), whose sum is σ = 298915200. Its totient is φ = 147916032.

The previous prime is 223030219. The next prime is 223030231. The reversal of 223030221 is 122030322.

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

It is not a de Polignac number, because 223030221 - 2¹ = 223030219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223030221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223030231) 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, 192021 + ... + 193178.

It is an arithmetic number, because the mean of its divisors is an integer number (37364400).

Almost surely, 2^223030221 is an apocalyptic number.

It is an amenable number.

223030221 is a deficient number, since it is larger than the sum of its proper divisors (75884979).

223030221 is a wasteful number, since it uses less digits than its factorization.

223030221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385395.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 223030221 is about 14934.1963627106. The cubic root of 223030221 is about 606.4400919326.

Adding to 223030221 its reverse (122030322), we get a palindrome (345060543).

The spelling of 223030221 in words is "two hundred twenty-three million, thirty thousand, two hundred twenty-one".