12216850 has 24 divisors (see below), whose sum is σ = 22878000. Its totient is φ = 4853520.

The previous prime is 12216839. The next prime is 12216857. The reversal of 12216850 is 5861221.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (12216857) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7401 + ... + 8899.

It is an arithmetic number, because the mean of its divisors is an integer number (953250).

Almost surely, 2^12216850 is an apocalyptic number.

12216850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12216850 is a deficient number, since it is larger than the sum of its proper divisors (10661150).

12216850 is a wasteful number, since it uses less digits than its factorization.

12216850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674 (or 1669 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 12216850 is about 3495.2610775162. The cubic root of 12216850 is about 230.3136866641.

The spelling of 12216850 in words is "twelve million, two hundred sixteen thousand, eight hundred fifty".