442242224881 has 2 divisors, whose sum is σ = 442242224882. Its totient is φ = 442242224880.

The previous prime is 442242224867. The next prime is 442242224917. The reversal of 442242224881 is 188422242244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 343611681856 + 98630543025 = 586184^2 + 314055^2 .

It is a cyclic number.

It is not a de Polignac number, because 442242224881 - 2¹⁷ = 442242093809 is a prime.

It is a super-2 number, since 2×442242224881² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (442242224821) 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, 221121112440 + 221121112441.

It is an arithmetic number, because the mean of its divisors is an integer number (221121112441).

Almost surely, 2^442242224881 is an apocalyptic number.

It is an amenable number.

442242224881 is a deficient number, since it is larger than the sum of its proper divisors (1).

442242224881 is an equidigital number, since it uses as much as digits as its factorization.

442242224881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524288, while the sum is 43.

The spelling of 442242224881 in words is "four hundred forty-two billion, two hundred forty-two million, two hundred twenty-four thousand, eight hundred eighty-one".