223221441 has 16 divisors (see below), whose sum is σ = 315792000. Its totient is φ = 139769088.

The previous prime is 223221437. The next prime is 223221451. The reversal of 223221441 is 144122322.

It is not a de Polignac number, because 223221441 - 2² = 223221437 is a prime.

It is a super-3 number, since 3×223221441³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (223221451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21660 + ... + 30258.

It is an arithmetic number, because the mean of its divisors is an integer number (19737000).

Almost surely, 2^223221441 is an apocalyptic number.

It is an amenable number.

223221441 is a deficient number, since it is larger than the sum of its proper divisors (92570559).

223221441 is a wasteful number, since it uses less digits than its factorization.

223221441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9128.

The product of its digits is 768, while the sum is 21.

The square root of 223221441 is about 14940.5970764223. The cubic root of 223221441 is about 606.6133574634.

Adding to 223221441 its reverse (144122322), we get a palindrome (367343763).

The spelling of 223221441 in words is "two hundred twenty-three million, two hundred twenty-one thousand, four hundred forty-one".