24223144221 has 12 divisors (see below), whose sum is σ = 35649156348. Its totient is φ = 15844068864.

The previous prime is 24223144207. The next prime is 24223144223. The reversal of 24223144221 is 12244132242.

It is a happy number.

24223144221 is a `hidden beast` number, since 2 + 4 + 2 + 231 + 4 + 422 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20952562500 + 3270581721 = 144750^2 + 57189^2 .

It is not a de Polignac number, because 24223144221 - 2⁹ = 24223143709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24223144223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25390660 + ... + 25391613.

It is an arithmetic number, because the mean of its divisors is an integer number (2970763029).

Almost surely, 2^24223144221 is an apocalyptic number.

It is an amenable number.

24223144221 is a deficient number, since it is larger than the sum of its proper divisors (11426012127).

24223144221 is a wasteful number, since it uses less digits than its factorization.

24223144221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50782332 (or 50782329 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

Adding to 24223144221 its reverse (12244132242), we get a palindrome (36467276463).

The spelling of 24223144221 in words is "twenty-four billion, two hundred twenty-three million, one hundred forty-four thousand, two hundred twenty-one".