12216727807 has 8 divisors (see below), whose sum is σ = 12687420416. Its totient is φ = 11754516312.

The previous prime is 12216727793. The next prime is 12216727823. The reversal of 12216727807 is 70872761221.

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-12216727807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12216727837) 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, 2117343 + ... + 2123104.

It is an arithmetic number, because the mean of its divisors is an integer number (1585927552).

Almost surely, 2^12216727807 is an apocalyptic number.

12216727807 is a deficient number, since it is larger than the sum of its proper divisors (470692609).

12216727807 is an equidigital number, since it uses as much as digits as its factorization.

12216727807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4240557.

The product of its (nonzero) digits is 131712, while the sum is 43.

The spelling of 12216727807 in words is "twelve billion, two hundred sixteen million, seven hundred twenty-seven thousand, eight hundred seven".