12217010 has 24 divisors (see below), whose sum is σ = 23815620. Its totient is φ = 4510272.

The previous prime is 12216991. The next prime is 12217027. The reversal of 12217010 is 1071221.

It can be written as a sum of positive squares in 6 ways, for example, as 4986289 + 7230721 = 2233^2 + 2689^2 .

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 11 ways as a sum of consecutive naturals, for example, 1925 + ... + 5304.

Almost surely, 2^12217010 is an apocalyptic number.

12217010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12217010 is a deficient number, since it is larger than the sum of its proper divisors (11598610).

12217010 is a wasteful number, since it uses less digits than its factorization.

12217010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7262 (or 7249 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 12217010 is about 3495.2839655742. The cubic root of 12217010 is about 230.3146921069.

Adding to 12217010 its reverse (1071221), we get a palindrome (13288231).

The spelling of 12217010 in words is "twelve million, two hundred seventeen thousand, ten".