12642110227 has 4 divisors (see below), whose sum is σ = 12659941840. Its totient is φ = 12624278616.

The previous prime is 12642110213. The next prime is 12642110233. The reversal of 12642110227 is 72201124621.

12642110227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12642110227 - 2³¹ = 10494626579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12642110195 and 12642110204.

It is not an unprimeable number, because it can be changed into a prime (12642117227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8914743 + ... + 8916160.

It is an arithmetic number, because the mean of its divisors is an integer number (3164985460).

Almost surely, 2^12642110227 is an apocalyptic number.

12642110227 is a deficient number, since it is larger than the sum of its proper divisors (17831613).

12642110227 is an equidigital number, since it uses as much as digits as its factorization.

12642110227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17831612.

The product of its (nonzero) digits is 2688, while the sum is 28.

Adding to 12642110227 its reverse (72201124621), we get a palindrome (84843234848).

The spelling of 12642110227 in words is "twelve billion, six hundred forty-two million, one hundred ten thousand, two hundred twenty-seven".