422021420223220 has 12 divisors (see below), whose sum is σ = 886244982468804. Its totient is φ = 168808568089280.

The previous prime is 422021420223187. The next prime is 422021420223329. The reversal of 422021420223220 is 22322024120224.

It can be written as a sum of positive squares in 2 ways, for example, as 186089485497444 + 235931934725776 = 13641462^2 + 15360076^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10550535505561 + ... + 10550535505600.

It is an arithmetic number, because the mean of its divisors is an integer number (73853748539067).

Almost surely, 2^{422021420223220} is an apocalyptic number.

It is an amenable number.

422021420223220 is an abundant number, since it is smaller than the sum of its proper divisors (464223562245584).

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

422021420223220 is a wasteful number, since it uses less digits than its factorization.

422021420223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21101071011170 (or 21101071011168 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 422021420223220 its reverse (22322024120224), we get a palindrome (444343444343444).

The spelling of 422021420223220 in words is "four hundred twenty-two trillion, twenty-one billion, four hundred twenty million, two hundred twenty-three thousand, two hundred twenty".