12208016 has 10 divisors (see below), whose sum is σ = 23653062. Its totient is φ = 6104000.

The previous prime is 12207977. The next prime is 12208019. The reversal of 12208016 is 61080221.

It can be written as a sum of positive squares in only one way, i.e., 10758400 + 1449616 = 3280^2 + 1204^2 .

It is not an unprimeable number, because it can be changed into a prime (12208019) 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 as a sum of consecutive naturals, namely, 381485 + ... + 381516.

Almost surely, 2^12208016 is an apocalyptic number.

12208016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12208016 is a deficient number, since it is larger than the sum of its proper divisors (11445046).

12208016 is an equidigital number, since it uses as much as digits as its factorization.

12208016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763009 (or 763003 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 12208016 is about 3493.9971379496. The cubic root of 12208016 is about 230.2581600292.

Adding to 12208016 its sum of digits (20), we get a square (12208036 = 3494²).

Adding to 12208016 its reverse (61080221), we get a palindrome (73288237).

The spelling of 12208016 in words is "twelve million, two hundred eight thousand, sixteen".