12208516 has 36 divisors (see below), whose sum is σ = 23209200. Its totient is φ = 5616256.

The previous prime is 12208489. The next prime is 12208519. The reversal of 12208516 is 61580221.

It is not an unprimeable number, because it can be changed into a prime (12208519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68115 + ... + 68293.

It is an arithmetic number, because the mean of its divisors is an integer number (644700).

Almost surely, 2^12208516 is an apocalyptic number.

It is an amenable number.

12208516 is a deficient number, since it is larger than the sum of its proper divisors (11000684).

12208516 is a wasteful number, since it uses less digits than its factorization.

12208516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 257 counting only the distinct ones).

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

The square root of 12208516 is about 3494.0686885063. The cubic root of 12208516 is about 230.2613035241.

Adding to 12208516 its reverse (61580221), we get a palindrome (73788737).

The spelling of 12208516 in words is "twelve million, two hundred eight thousand, five hundred sixteen".