12227116637 has 16 divisors (see below), whose sum is σ = 12688099200. Its totient is φ = 11774357760.

The previous prime is 12227116633. The next prime is 12227116639. The reversal of 12227116637 is 73661172221.

It is a cyclic number.

It is not a de Polignac number, because 12227116637 - 2² = 12227116633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12227116637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12227116631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2358314 + ... + 2363492.

It is an arithmetic number, because the mean of its divisors is an integer number (793006200).

Almost surely, 2^12227116637 is an apocalyptic number.

It is an amenable number.

12227116637 is a deficient number, since it is larger than the sum of its proper divisors (460982563).

12227116637 is an equidigital number, since it uses as much as digits as its factorization.

12227116637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5956.

The product of its digits is 42336, while the sum is 38.

Adding to 12227116637 its reverse (73661172221), we get a palindrome (85888288858).

The spelling of 12227116637 in words is "twelve billion, two hundred twenty-seven million, one hundred sixteen thousand, six hundred thirty-seven".