442122755122 has 4 divisors (see below), whose sum is σ = 663184132686. Its totient is φ = 221061377560.

The previous prime is 442122755101. The next prime is 442122755149. The reversal of 442122755122 is 221557221244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 297601889841 + 144520865281 = 545529^2 + 380159^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 110530688779 + ... + 110530688782.

Almost surely, 2^442122755122 is an apocalyptic number.

442122755122 is a deficient number, since it is larger than the sum of its proper divisors (221061377564).

442122755122 is a wasteful number, since it uses less digits than its factorization.

442122755122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221061377563.

The product of its digits is 89600, while the sum is 37.

Adding to 442122755122 its reverse (221557221244), we get a palindrome (663679976366).

The spelling of 442122755122 in words is "four hundred forty-two billion, one hundred twenty-two million, seven hundred fifty-five thousand, one hundred twenty-two".