24221133221 has 2 divisors, whose sum is σ = 24221133222. Its totient is φ = 24221133220.

The previous prime is 24221133203. The next prime is 24221133259. The reversal of 24221133221 is 12233112242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21722632996 + 2498500225 = 147386^2 + 49985^2 .

It is a cyclic number.

It is not a de Polignac number, because 24221133221 - 2³⁴ = 7041264037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24221133271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12110566610 + 12110566611.

It is an arithmetic number, because the mean of its divisors is an integer number (12110566611).

Almost surely, 2^24221133221 is an apocalyptic number.

It is an amenable number.

24221133221 is a deficient number, since it is larger than the sum of its proper divisors (1).

24221133221 is an equidigital number, since it uses as much as digits as its factorization.

24221133221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

Adding to 24221133221 its reverse (12233112242), we get a palindrome (36454245463).

The spelling of 24221133221 in words is "twenty-four billion, two hundred twenty-one million, one hundred thirty-three thousand, two hundred twenty-one".