12222315 has 72 divisors (see below), whose sum is σ = 25822368. Its totient is φ = 5322240.

The previous prime is 12222307. The next prime is 12222319. The reversal of 12222315 is 51322221.

It is not a de Polignac number, because 12222315 - 2³ = 12222307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12222319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 50595 + ... + 50835.

It is an arithmetic number, because the mean of its divisors is an integer number (358644).

Almost surely, 2^12222315 is an apocalyptic number.

12222315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12222315 is an abundant number, since it is smaller than the sum of its proper divisors (13600053).

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

12222315 is a wasteful number, since it uses less digits than its factorization.

12222315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 279 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 12222315 is about 3496.0427628964. The cubic root of 12222315 is about 230.3480238477.

Adding to 12222315 its reverse (51322221), we get a palindrome (63544536).

The spelling of 12222315 in words is "twelve million, two hundred twenty-two thousand, three hundred fifteen".