422222022020 has 24 divisors (see below), whose sum is σ = 886906235544. Its totient is φ = 168843096576.

The previous prime is 422222021989. The next prime is 422222022029. The reversal of 422222022020 is 20220222224.

It can be written as a sum of positive squares in 4 ways, for example, as 35832975616 + 386389046404 = 189296^2 + 621602^2 .

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 = 422222021983 and 422222022001.

It is not an unprimeable number, because it can be changed into a prime (422222022029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2781227 + ... + 2929106.

It is an arithmetic number, because the mean of its divisors is an integer number (36954426481).

Almost surely, 2^422222022020 is an apocalyptic number.

It is an amenable number.

422222022020 is an abundant number, since it is smaller than the sum of its proper divisors (464684213524).

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

422222022020 is a wasteful number, since it uses less digits than its factorization.

422222022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5714039 (or 5714037 counting only the distinct ones).

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

Adding to 422222022020 its reverse (20220222224), we get a palindrome (442442244244).

The spelling of 422222022020 in words is "four hundred twenty-two billion, two hundred twenty-two million, twenty-two thousand, twenty".