12210215 has 8 divisors (see below), whose sum is σ = 14782608. Its totient is φ = 9681280.

The previous prime is 12210203. The next prime is 12210221. The reversal of 12210215 is 51201221.

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

It is not a de Polignac number, because 12210215 - 2⁸ = 12209959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12210215.

It is a congruent number.

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, 10241 + ... + 11370.

It is an arithmetic number, because the mean of its divisors is an integer number (1847826).

Almost surely, 2^12210215 is an apocalyptic number.

12210215 is a deficient number, since it is larger than the sum of its proper divisors (2572393).

12210215 is a wasteful number, since it uses less digits than its factorization.

12210215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21729.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 12210215 is about 3494.3118063504. The cubic root of 12210215 is about 230.2719844785.

Adding to 12210215 its reverse (51201221), we get a palindrome (63411436).

The spelling of 12210215 in words is "twelve million, two hundred ten thousand, two hundred fifteen".