422431222220 has 192 divisors, whose sum is σ = 1076149960704. Its totient is φ = 136205245440.

The previous prime is 422431222211. The next prime is 422431222223. The reversal of 422431222220 is 22222134224.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 422431222220.

It is not an unprimeable number, because it can be changed into a prime (422431222223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 258051242 + ... + 258052878.

It is an arithmetic number, because the mean of its divisors is an integer number (5604947712).

Almost surely, 2^422431222220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422431222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538074980352).

422431222220 is an abundant number, since it is smaller than the sum of its proper divisors (653718738484).

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

422431222220 is a wasteful number, since it uses less digits than its factorization.

422431222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3328 (or 3326 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 422431222220 its reverse (22222134224), we get a palindrome (444653356444).

The spelling of 422431222220 in words is "four hundred twenty-two billion, four hundred thirty-one million, two hundred twenty-two thousand, two hundred twenty".