242244311021 has 2 divisors, whose sum is σ = 242244311022. Its totient is φ = 242244311020.

The previous prime is 242244310949. The next prime is 242244311033. The reversal of 242244311021 is 120113442242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189808348900 + 52435962121 = 435670^2 + 228989^2 .

It is a cyclic number.

It is not a de Polignac number, because 242244311021 - 2¹⁴ = 242244294637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242244311051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121122155510 + 121122155511.

It is an arithmetic number, because the mean of its divisors is an integer number (121122155511).

Almost surely, 2^242244311021 is an apocalyptic number.

It is an amenable number.

242244311021 is a deficient number, since it is larger than the sum of its proper divisors (1).

242244311021 is an equidigital number, since it uses as much as digits as its factorization.

242244311021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 242244311021 its reverse (120113442242), we get a palindrome (362357753263).

The spelling of 242244311021 in words is "two hundred forty-two billion, two hundred forty-four million, three hundred eleven thousand, twenty-one".