24221304021 has 8 divisors (see below), whose sum is σ = 32295860224. Its totient is φ = 16147141920.

The previous prime is 24221303993. The next prime is 24221304077. The reversal of 24221304021 is 12040312242.

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

It is not a de Polignac number, because 24221304021 - 2¹⁰ = 24221302997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24221303021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104865 + ... + 243801.

It is an arithmetic number, because the mean of its divisors is an integer number (4036982528).

Almost surely, 2^24221304021 is an apocalyptic number.

It is an amenable number.

24221304021 is a deficient number, since it is larger than the sum of its proper divisors (8074556203).

24221304021 is a wasteful number, since it uses less digits than its factorization.

24221304021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197051.

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

Adding to 24221304021 its reverse (12040312242), we get a palindrome (36261616263).

The spelling of 24221304021 in words is "twenty-four billion, two hundred twenty-one million, three hundred four thousand, twenty-one".