12422344220 has 96 divisors (see below), whose sum is σ = 30688519680. Its totient is φ = 4164168960.

The previous prime is 12422344201. The next prime is 12422344223. The reversal of 12422344220 is 2244322421.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 12422344220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12422344223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2522921 + ... + 2527839.

It is an arithmetic number, because the mean of its divisors is an integer number (319672080).

Almost surely, 2^12422344220 is an apocalyptic number.

12422344220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12422344220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15344259840).

12422344220 is an abundant number, since it is smaller than the sum of its proper divisors (18266175460).

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

12422344220 is a wasteful number, since it uses less digits than its factorization.

12422344220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5835 (or 5833 counting only the distinct ones).

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

Adding to 12422344220 its reverse (2244322421), we get a palindrome (14666666641).

The spelling of 12422344220 in words is "twelve billion, four hundred twenty-two million, three hundred forty-four thousand, two hundred twenty".