12214556 has 24 divisors (see below), whose sum is σ = 22226400. Its totient is φ = 5868800.

The previous prime is 12214523. The next prime is 12214561. The reversal of 12214556 is 65541221.

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, 11120 + ... + 12168.

It is an arithmetic number, because the mean of its divisors is an integer number (926100).

Almost surely, 2^12214556 is an apocalyptic number.

It is an amenable number.

12214556 is a deficient number, since it is larger than the sum of its proper divisors (10011844).

12214556 is a wasteful number, since it uses less digits than its factorization.

12214556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165 (or 1163 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 12214556 is about 3494.9329035047. The cubic root of 12214556 is about 230.2992701637.

Adding to 12214556 its reverse (65541221), we get a palindrome (77755777).

The spelling of 12214556 in words is "twelve million, two hundred fourteen thousand, five hundred fifty-six".