224203231221 has 8 divisors (see below), whose sum is σ = 299446907424. Its totient is φ = 149214187920.

The previous prime is 224203231201. The next prime is 224203231243. The reversal of 224203231221 is 122132302422.

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

It is not a de Polignac number, because 224203231221 - 2¹⁰ = 224203230197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 224203231191 and 224203231200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224203231201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63656170 + ... + 63659691.

It is an arithmetic number, because the mean of its divisors is an integer number (37430863428).

Almost surely, 2^224203231221 is an apocalyptic number.

It is an amenable number.

224203231221 is a deficient number, since it is larger than the sum of its proper divisors (75243676203).

224203231221 is a wasteful number, since it uses less digits than its factorization.

224203231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127316451.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 224203231221 its reverse (122132302422), we get a palindrome (346335533643).

The spelling of 224203231221 in words is "two hundred twenty-four billion, two hundred three million, two hundred thirty-one thousand, two hundred twenty-one".