12322500 has 120 divisors (see below), whose sum is σ = 37787904. Its totient is φ = 3120000.

The previous prime is 12322451. The next prime is 12322523. The reversal of 12322500 is 522321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12322500.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 232474 + ... + 232526.

Almost surely, 2^12322500 is an apocalyptic number.

12322500 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 12322500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18893952).

12322500 is an abundant number, since it is smaller than the sum of its proper divisors (25465404).

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

12322500 is a wasteful number, since it uses less digits than its factorization.

12322500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 12322500 is about 3510.3418636936. The cubic root of 12322500 is about 230.9756913008.

Adding to 12322500 its reverse (522321), we get a palindrome (12844821).

The spelling of 12322500 in words is "twelve million, three hundred twenty-two thousand, five hundred".