242023323320221 has 2 divisors, whose sum is σ = 242023323320222. Its totient is φ = 242023323320220.

The previous prime is 242023323320213. The next prime is 242023323320269. The reversal of 242023323320221 is 122023323320242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211004995572121 + 31018327748100 = 14526011^2 + 5569410^2 .

It is a cyclic number.

It is not a de Polignac number, because 242023323320221 - 2³ = 242023323320213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242023323320291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121011661660110 + 121011661660111.

It is an arithmetic number, because the mean of its divisors is an integer number (121011661660111).

Almost surely, 2^{242023323320221} is an apocalyptic number.

It is an amenable number.

242023323320221 is a deficient number, since it is larger than the sum of its proper divisors (1).

242023323320221 is an equidigital number, since it uses as much as digits as its factorization.

242023323320221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 242023323320221 its reverse (122023323320242), we get a palindrome (364046646640463).

The spelling of 242023323320221 in words is "two hundred forty-two trillion, twenty-three billion, three hundred twenty-three million, three hundred twenty thousand, two hundred twenty-one".