422420200042 has 12 divisors (see below), whose sum is σ = 662377234050. Its totient is φ = 202027051688.

The previous prime is 422420199979. The next prime is 422420200063. The reversal of 422420200042 is 240002024224.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 404520168361 + 17900031681 = 636019^2 + 133791^2 .

It is a junction number, because it is equal to n+sod(n) for n = 422420199986 and 422420200022.

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 in 5 ways as a sum of consecutive naturals, for example, 199630417 + ... + 199632532.

Almost surely, 2^422420200042 is an apocalyptic number.

422420200042 is a deficient number, since it is larger than the sum of its proper divisors (239957034008).

422420200042 is a wasteful number, since it uses less digits than its factorization.

422420200042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399262997 (or 399262974 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 422420200042 its reverse (240002024224), we get a palindrome (662422224266).

The spelling of 422420200042 in words is "four hundred twenty-two billion, four hundred twenty million, two hundred thousand, forty-two".