12143422211 has 4 divisors (see below), whose sum is σ = 12184867632. Its totient is φ = 12101976792.

The previous prime is 12143422157. The next prime is 12143422219. The reversal of 12143422211 is 11222434121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11222434121 = 127 ⋅88365623.

It is a cyclic number.

It is not a de Polignac number, because 12143422211 - 2¹⁰ = 12143421187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12143422219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20722271 + ... + 20722856.

It is an arithmetic number, because the mean of its divisors is an integer number (3046216908).

Almost surely, 2^12143422211 is an apocalyptic number.

12143422211 is a deficient number, since it is larger than the sum of its proper divisors (41445421).

12143422211 is an equidigital number, since it uses as much as digits as its factorization.

12143422211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41445420.

The product of its digits is 768, while the sum is 23.

Adding to 12143422211 its reverse (11222434121), we get a palindrome (23365856332).

The spelling of 12143422211 in words is "twelve billion, one hundred forty-three million, four hundred twenty-two thousand, two hundred eleven".