24242222240221 has 4 divisors (see below), whose sum is σ = 24254647778944. Its totient is φ = 24229796701500.

The previous prime is 24242222240213. The next prime is 24242222240233. The reversal of 24242222240221 is 12204222224242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 24242222240221 - 2³ = 24242222240213 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 (24242222240261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6212766435 + ... + 6212770336.

It is an arithmetic number, because the mean of its divisors is an integer number (6063661944736).

Almost surely, 2^{24242222240221} is an apocalyptic number.

It is an amenable number.

24242222240221 is a deficient number, since it is larger than the sum of its proper divisors (12425538723).

24242222240221 is a wasteful number, since it uses less digits than its factorization.

24242222240221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12425538722.

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 24242222240221 its reverse (12204222224242), we get a palindrome (36446444464463).

The spelling of 24242222240221 in words is "twenty-four trillion, two hundred forty-two billion, two hundred twenty-two million, two hundred forty thousand, two hundred twenty-one".