12656222341 has 4 divisors (see below), whose sum is σ = 14464254112. Its totient is φ = 10848190572.

The previous prime is 12656222323. The next prime is 12656222401. The reversal of 12656222341 is 14322265621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12656222341 - 2¹¹ = 12656220293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12656222297 and 12656222306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12656222321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904015875 + ... + 904015888.

It is an arithmetic number, because the mean of its divisors is an integer number (3616063528).

Almost surely, 2^12656222341 is an apocalyptic number.

It is an amenable number.

12656222341 is a deficient number, since it is larger than the sum of its proper divisors (1808031771).

12656222341 is an equidigital number, since it uses as much as digits as its factorization.

12656222341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808031770.

The product of its digits is 34560, while the sum is 34.

Adding to 12656222341 its reverse (14322265621), we get a palindrome (26978487962).

The spelling of 12656222341 in words is "twelve billion, six hundred fifty-six million, two hundred twenty-two thousand, three hundred forty-one".