12223515 has 8 divisors (see below), whose sum is σ = 19557648. Its totient is φ = 6519200.

The previous prime is 12223501. The next prime is 12223531. The reversal of 12223515 is 51532221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12223515 - 2⁵ = 12223483 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12223491 and 12223500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407436 + ... + 407465.

It is an arithmetic number, because the mean of its divisors is an integer number (2444706).

Almost surely, 2^12223515 is an apocalyptic number.

12223515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12223515 is a deficient number, since it is larger than the sum of its proper divisors (7334133).

12223515 is an equidigital number, since it uses as much as digits as its factorization.

12223515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814909.

The product of its digits is 600, while the sum is 21.

The square root of 12223515 is about 3496.2143812987. The cubic root of 12223515 is about 230.3555622064.

Adding to 12223515 its reverse (51532221), we get a palindrome (63755736).

The spelling of 12223515 in words is "twelve million, two hundred twenty-three thousand, five hundred fifteen".