12222345671 has 4 divisors (see below), whose sum is σ = 12506586312. Its totient is φ = 11938105032.

The previous prime is 12222345637. The next prime is 12222345683. The reversal of 12222345671 is 17654322221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17654322221 = 23 ⋅767579227.

It is a cyclic number.

It is not a de Polignac number, because 12222345671 - 2¹⁸ = 12222083527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222341671) 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, 142120256 + ... + 142120341.

It is an arithmetic number, because the mean of its divisors is an integer number (3126646578).

Almost surely, 2^12222345671 is an apocalyptic number.

12222345671 is a deficient number, since it is larger than the sum of its proper divisors (284240641).

12222345671 is an equidigital number, since it uses as much as digits as its factorization.

12222345671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284240640.

The product of its digits is 40320, while the sum is 35.

Adding to 12222345671 its reverse (17654322221), we get a palindrome (29876667892).

The spelling of 12222345671 in words is "twelve billion, two hundred twenty-two million, three hundred forty-five thousand, six hundred seventy-one".