12215514 has 8 divisors (see below), whose sum is σ = 24431040. Its totient is φ = 4071836.

The previous prime is 12215477. The next prime is 12215527. The reversal of 12215514 is 41551221.

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

12215514 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1017954 + ... + 1017965.

It is an arithmetic number, because the mean of its divisors is an integer number (3053880).

Almost surely, 2^12215514 is an apocalyptic number.

12215514 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12215514 is a wasteful number, since it uses less digits than its factorization.

12215514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035924.

The product of its digits is 400, while the sum is 21.

The square root of 12215514 is about 3495.0699563814. The cubic root of 12215514 is about 230.3052908747.

Adding to 12215514 its reverse (41551221), we get a palindrome (53766735).

The spelling of 12215514 in words is "twelve million, two hundred fifteen thousand, five hundred fourteen".