42242200020 has 36 divisors (see below), whose sum is σ = 128134673940. Its totient is φ = 11264586624.

The previous prime is 42242199959. The next prime is 42242200031. The reversal of 42242200020 is 2000224224.

42242200020 is a `hidden beast` number, since 422 + 4 + 220 + 0 + 0 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5922225936 + 36319974084 = 76956^2 + 190578^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 42242199966 and 42242200002.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 117339265 + ... + 117339624.

Almost surely, 2^42242200020 is an apocalyptic number.

It is an amenable number.

42242200020 is an abundant number, since it is smaller than the sum of its proper divisors (85892473920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42242200020 is a wasteful number, since it uses less digits than its factorization.

42242200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234678904 (or 234678899 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 42242200020 its reverse (2000224224), we get a palindrome (44242424244).

The spelling of 42242200020 in words is "forty-two billion, two hundred forty-two million, two hundred thousand, twenty".