12012215 has 8 divisors (see below), whose sum is σ = 14435280. Its totient is φ = 9596032.

The previous prime is 12012197. The next prime is 12012257. The reversal of 12012215 is 51221021.

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

It is a cyclic number.

It is not a de Polignac number, because 12012215 - 2¹⁴ = 11995831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12012215.

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, 3656 + ... + 6114.

It is an arithmetic number, because the mean of its divisors is an integer number (1804410).

Almost surely, 2^12012215 is an apocalyptic number.

12012215 is a deficient number, since it is larger than the sum of its proper divisors (2423065).

12012215 is an equidigital number, since it uses as much as digits as its factorization.

12012215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3441.

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

The square root of 12012215 is about 3465.8642500825. The cubic root of 12012215 is about 229.0205037482.

Adding to 12012215 its reverse (51221021), we get a palindrome (63233236).

The spelling of 12012215 in words is "twelve million, twelve thousand, two hundred fifteen".