12226650 has 48 divisors (see below), whose sum is σ = 31155744. Its totient is φ = 3170880.

The previous prime is 12226649. The next prime is 12226667. The reversal of 12226650 is 5662221.

It is a self number, because there is not a number n which added to its sum of digits gives 12226650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4449 + ... + 6651.

It is an arithmetic number, because the mean of its divisors is an integer number (649078).

Almost surely, 2^12226650 is an apocalyptic number.

12226650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12226650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15577872).

12226650 is an abundant number, since it is smaller than the sum of its proper divisors (18929094).

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

12226650 is a wasteful number, since it uses less digits than its factorization.

12226650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255 (or 2250 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 12226650 is about 3496.6626946276. The cubic root of 12226650 is about 230.3752538406.

Adding to 12226650 its reverse (5662221), we get a palindrome (17888871).

The spelling of 12226650 in words is "twelve million, two hundred twenty-six thousand, six hundred fifty".