12143212211 has 4 divisors (see below), whose sum is σ = 13077305472. Its totient is φ = 11209118952.

The previous prime is 12143212201. The next prime is 12143212219. The reversal of 12143212211 is 11221234121.

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 12143212211 - 2³⁰ = 11069470387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12143212219) 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, 467046611 + ... + 467046636.

It is an arithmetic number, because the mean of its divisors is an integer number (3269326368).

Almost surely, 2^12143212211 is an apocalyptic number.

12143212211 is a deficient number, since it is larger than the sum of its proper divisors (934093261).

12143212211 is an equidigital number, since it uses as much as digits as its factorization.

12143212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934093260.

The product of its digits is 192, while the sum is 20.

Adding to 12143212211 its reverse (11221234121), we get a palindrome (23364446332).

The spelling of 12143212211 in words is "twelve billion, one hundred forty-three million, two hundred twelve thousand, two hundred eleven".