12216697 has 8 divisors (see below), whose sum is σ = 12952832. Its totient is φ = 11502000.

The previous prime is 12216671. The next prime is 12216719. The reversal of 12216697 is 79661221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12216697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12216397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4179 + ... + 6472.

It is an arithmetic number, because the mean of its divisors is an integer number (1619104).

Almost surely, 2^12216697 is an apocalyptic number.

It is an amenable number.

12216697 is a deficient number, since it is larger than the sum of its proper divisors (736135).

12216697 is a wasteful number, since it uses less digits than its factorization.

12216697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10719.

The product of its digits is 9072, while the sum is 34.

The square root of 12216697 is about 3495.2391906706. The cubic root of 12216697 is about 230.3127252013.

The spelling of 12216697 in words is "twelve million, two hundred sixteen thousand, six hundred ninety-seven".