422442220042 has 4 divisors (see below), whose sum is σ = 633663330066. Its totient is φ = 211221110020.

The previous prime is 422442219949. The next prime is 422442220087. The reversal of 422442220042 is 240022244224.

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., 238650813361 + 183791406681 = 488519^2 + 428709^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105610555009 + ... + 105610555012.

Almost surely, 2^422442220042 is an apocalyptic number.

422442220042 is a deficient number, since it is larger than the sum of its proper divisors (211221110024).

422442220042 is a wasteful number, since it uses less digits than its factorization.

422442220042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211221110023.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 422442220042 its reverse (240022244224), we get a palindrome (662464464266).

The spelling of 422442220042 in words is "four hundred twenty-two billion, four hundred forty-two million, two hundred twenty thousand, forty-two".