12216613123606 has 16 divisors (see below), whose sum is σ = 18394561382400. Its totient is φ = 6085130016168.

The previous prime is 12216613123601. The next prime is 12216613123667. The reversal of 12216613123606 is 60632131661221.

12216613123606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12216613123601) 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, 8683566 + ... + 9991873.

It is an arithmetic number, because the mean of its divisors is an integer number (1149660086400).

Almost surely, 2^{12216613123606} is an apocalyptic number.

12216613123606 is a deficient number, since it is larger than the sum of its proper divisors (6177948258794).

12216613123606 is a wasteful number, since it uses less digits than its factorization.

12216613123606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18676683.

The product of its (nonzero) digits is 93312, while the sum is 40.

Adding to 12216613123606 its reverse (60632131661221), we get a palindrome (72848744784827).

The spelling of 12216613123606 in words is "twelve trillion, two hundred sixteen billion, six hundred thirteen million, one hundred twenty-three thousand, six hundred six".