12225270 has 16 divisors (see below), whose sum is σ = 29340720. Its totient is φ = 3260064.

The previous prime is 12225251. The next prime is 12225299. The reversal of 12225270 is 7252221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203725 + ... + 203784.

It is an arithmetic number, because the mean of its divisors is an integer number (1833795).

Almost surely, 2^12225270 is an apocalyptic number.

12225270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12225270 is an abundant number, since it is smaller than the sum of its proper divisors (17115450).

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

12225270 is a wasteful number, since it uses less digits than its factorization.

12225270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407519.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 12225270 is about 3496.4653580437. The cubic root of 12225270 is about 230.3665861676.

Adding to 12225270 its reverse (7252221), we get a palindrome (19477491).

The spelling of 12225270 in words is "twelve million, two hundred twenty-five thousand, two hundred seventy".