12422512 has 40 divisors (see below), whose sum is σ = 25779600. Its totient is φ = 5778432.

The previous prime is 12422471. The next prime is 12422533. The reversal of 12422512 is 21522421.

It is a self number, because there is not a number n which added to its sum of digits gives 12422512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29439 + ... + 29857.

It is an arithmetic number, because the mean of its divisors is an integer number (644490).

Almost surely, 2^12422512 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 12422512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12889800).

12422512 is an abundant number, since it is smaller than the sum of its proper divisors (13357088).

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

12422512 is a wasteful number, since it uses less digits than its factorization.

12422512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 547 counting only the distinct ones).

The product of its digits is 320, while the sum is 19.

The square root of 12422512 is about 3524.5584120568. The cubic root of 12422512 is about 231.5988907429.

Adding to 12422512 its reverse (21522421), we get a palindrome (33944933).

Subtracting 12422512 from its reverse (21522421), we obtain a palindrome (9099909).

The spelling of 12422512 in words is "twelve million, four hundred twenty-two thousand, five hundred twelve".