12228552 has 96 divisors (see below), whose sum is σ = 39873600. Its totient is φ = 3307392.

The previous prime is 12228551. The next prime is 12228553. The reversal of 12228552 is 25582221.

It is an interprime number because it is at equal distance from previous prime (12228551) and next prime (12228553).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12228551) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 8938 + ... + 10214.

It is an arithmetic number, because the mean of its divisors is an integer number (415350).

Almost surely, 2^12228552 is an apocalyptic number.

12228552 is a gapful number since it is divisible by the number (12) 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 12228552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19936800).

12228552 is an abundant number, since it is smaller than the sum of its proper divisors (27645048).

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

12228552 is a wasteful number, since it uses less digits than its factorization.

12228552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315 (or 1308 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 12228552 is about 3496.9346576681. The cubic root of 12228552 is about 230.3871990863.

The spelling of 12228552 in words is "twelve million, two hundred twenty-eight thousand, five hundred fifty-two".