223301221 has 24 divisors (see below), whose sum is σ = 266366016. Its totient is φ = 185552640.

The previous prime is 223301213. The next prime is 223301237. The reversal of 223301221 is 122103322.

It is not a de Polignac number, because 223301221 - 2³ = 223301213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223301195 and 223301204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223301521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209536 + ... + 210598.

It is an arithmetic number, because the mean of its divisors is an integer number (11098584).

Almost surely, 2^223301221 is an apocalyptic number.

It is an amenable number.

223301221 is a deficient number, since it is larger than the sum of its proper divisors (43064795).

223301221 is a wasteful number, since it uses less digits than its factorization.

223301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 223301221 is about 14943.2667445910. The cubic root of 223301221 is about 606.6856173219.

Adding to 223301221 its reverse (122103322), we get a palindrome (345404543).

The spelling of 223301221 in words is "two hundred twenty-three million, three hundred one thousand, two hundred twenty-one".