12252210 has 32 divisors (see below), whose sum is σ = 30421440. Its totient is φ = 3154368.

The previous prime is 12252197. The next prime is 12252259. The reversal of 12252210 is 1225221.

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 12252210.

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 15 ways as a sum of consecutive naturals, for example, 6172 + ... + 7911.

It is an arithmetic number, because the mean of its divisors is an integer number (950670).

Almost surely, 2^12252210 is an apocalyptic number.

12252210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12252210 is an abundant number, since it is smaller than the sum of its proper divisors (18169230).

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

12252210 is a wasteful number, since it uses less digits than its factorization.

12252210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14122.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 12252210 is about 3500.3157000476. The cubic root of 12252210 is about 230.5356764417.

Adding to 12252210 its reverse (1225221), we get a palindrome (13477431).

The spelling of 12252210 in words is "twelve million, two hundred fifty-two thousand, two hundred ten".