12216692 has 12 divisors (see below), whose sum is σ = 21474180. Its totient is φ = 6081216.

The previous prime is 12216671. The next prime is 12216719. The reversal of 12216692 is 29661221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7873636 + 4343056 = 2806^2 + 2084^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 5753 + ... + 7584.

It is an arithmetic number, because the mean of its divisors is an integer number (1789515).

Almost surely, 2^12216692 is an apocalyptic number.

It is an amenable number.

12216692 is a deficient number, since it is larger than the sum of its proper divisors (9257488).

12216692 is a wasteful number, since it uses less digits than its factorization.

12216692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13570 (or 13568 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 12216692 is about 3495.2384754119. The cubic root of 12216692 is about 230.3126937808.

The spelling of 12216692 in words is "twelve million, two hundred sixteen thousand, six hundred ninety-two".