422422330221 has 24 divisors (see below), whose sum is σ = 631356687000. Its totient is φ = 271839023232.

The previous prime is 422422330219. The next prime is 422422330223. The reversal of 422422330221 is 122033224224.

422422330221 is a `hidden beast` number, since 422 + 4 + 2 + 233 + 0 + 2 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (422422330219) and next prime (422422330223).

It can be written as a sum of positive squares in 4 ways, for example, as 296120988900 + 126301341321 = 544170^2 + 355389^2 .

It is not a de Polignac number, because 422422330221 - 2¹ = 422422330219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422422330223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 912415 + ... + 1295123.

It is an arithmetic number, because the mean of its divisors is an integer number (26306528625).

Almost surely, 2^422422330221 is an apocalyptic number.

It is an amenable number.

422422330221 is a deficient number, since it is larger than the sum of its proper divisors (208934356779).

422422330221 is a wasteful number, since it uses less digits than its factorization.

422422330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386973 (or 386970 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 422422330221 its reverse (122033224224), we get a palindrome (544455554445).

The spelling of 422422330221 in words is "four hundred twenty-two billion, four hundred twenty-two million, three hundred thirty thousand, two hundred twenty-one".