12225210 has 32 divisors (see below), whose sum is σ = 31067712. Its totient is φ = 3068160.

The previous prime is 12225209. The next prime is 12225221. The reversal of 12225210 is 1252221.

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 12225210.

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, 11476 + ... + 12495.

It is an arithmetic number, because the mean of its divisors is an integer number (970866).

Almost surely, 2^12225210 is an apocalyptic number.

12225210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12225210 is an abundant number, since it is smaller than the sum of its proper divisors (18842502).

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

12225210 is a wasteful number, since it uses less digits than its factorization.

12225210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23998.

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

The square root of 12225210 is about 3496.4567779396. The cubic root of 12225210 is about 230.3662092975.

Adding to 12225210 its reverse (1252221), we get a palindrome (13477431).

The spelling of 12225210 in words is "twelve million, two hundred twenty-five thousand, two hundred ten".