242424301221 has 32 divisors (see below), whose sum is σ = 389117013120. Its totient is φ = 148571926272.

The previous prime is 242424301211. The next prime is 242424301237. The reversal of 242424301221 is 122103424242.

It is a happy number.

242424301221 is a `hidden beast` number, since 2 + 4 + 2 + 4 + 2 + 430 + 1 + 221 = 666.

242424301221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242424301221 - 2⁹ = 242424300709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242424301211) 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 31 ways as a sum of consecutive naturals, for example, 6121630 + ... + 6161103.

It is an arithmetic number, because the mean of its divisors is an integer number (12159906660).

Almost surely, 2^242424301221 is an apocalyptic number.

It is an amenable number.

242424301221 is a deficient number, since it is larger than the sum of its proper divisors (146692711899).

242424301221 is a wasteful number, since it uses less digits than its factorization.

242424301221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12282802 (or 12282796 counting only the distinct ones).

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

Adding to 242424301221 its reverse (122103424242), we get a palindrome (364527725463).

The spelling of 242424301221 in words is "two hundred forty-two billion, four hundred twenty-four million, three hundred one thousand, two hundred twenty-one".