442043223322 has 4 divisors (see below), whose sum is σ = 663064834986. Its totient is φ = 221021611660.

The previous prime is 442043223311. The next prime is 442043223329. The reversal of 442043223322 is 223322340244.

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., 335531721001 + 106511502321 = 579251^2 + 326361^2 .

It is a super-2 number, since 2×442043223322² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (442043223329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110510805829 + ... + 110510805832.

Almost surely, 2^442043223322 is an apocalyptic number.

442043223322 is a deficient number, since it is larger than the sum of its proper divisors (221021611664).

442043223322 is a wasteful number, since it uses less digits than its factorization.

442043223322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221021611663.

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 442043223322 its reverse (223322340244), we get a palindrome (665365563566).

The spelling of 442043223322 in words is "four hundred forty-two billion, forty-three million, two hundred twenty-three thousand, three hundred twenty-two".