442220220020 has 48 divisors (see below), whose sum is σ = 938031494400. Its totient is φ = 175104163200.

The previous prime is 442220220007. The next prime is 442220220031. The reversal of 442220220020 is 20022022244.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 442220219974 and 442220220001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12868421 + ... + 12902739.

It is an arithmetic number, because the mean of its divisors is an integer number (19542322800).

Almost surely, 2^442220220020 is an apocalyptic number.

It is an amenable number.

442220220020 is an abundant number, since it is smaller than the sum of its proper divisors (495811274380).

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

442220220020 is a wasteful number, since it uses less digits than its factorization.

442220220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40808 (or 40806 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 442220220020 its reverse (20022022244), we get a palindrome (462242242264).

The spelling of 442220220020 in words is "four hundred forty-two billion, two hundred twenty million, two hundred twenty thousand, twenty".