12214515 has 16 divisors (see below), whose sum is σ = 20020896. Its totient is φ = 6355200.

The previous prime is 12214507. The next prime is 12214519. The reversal of 12214515 is 51541221.

It is not a de Polignac number, because 12214515 - 2³ = 12214507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12214491 and 12214500.

It is not an unprimeable number, because it can be changed into a prime (12214519) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9316 + ... + 10545.

It is an arithmetic number, because the mean of its divisors is an integer number (1251306).

Almost surely, 2^12214515 is an apocalyptic number.

12214515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12214515 is a deficient number, since it is larger than the sum of its proper divisors (7806381).

12214515 is a wasteful number, since it uses less digits than its factorization.

12214515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19910.

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

The square root of 12214515 is about 3494.9270378650. The cubic root of 12214515 is about 230.2990124853.

Adding to 12214515 its reverse (51541221), we get a palindrome (63755736).

The spelling of 12214515 in words is "twelve million, two hundred fourteen thousand, five hundred fifteen".