12206021143 has 4 divisors (see below), whose sum is σ = 12218339008. Its totient is φ = 12193703280.

The previous prime is 12206021083. The next prime is 12206021159. The reversal of 12206021143 is 34112060221.

12206021143 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 12206021143 - 2¹⁷ = 12205890071 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 (12206028143) 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, 6157446 + ... + 6159427.

It is an arithmetic number, because the mean of its divisors is an integer number (3054584752).

Almost surely, 2^12206021143 is an apocalyptic number.

12206021143 is a deficient number, since it is larger than the sum of its proper divisors (12317865).

12206021143 is an equidigital number, since it uses as much as digits as its factorization.

12206021143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12317864.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12206021143 its reverse (34112060221), we get a palindrome (46318081364).

The spelling of 12206021143 in words is "twelve billion, two hundred six million, twenty-one thousand, one hundred forty-three".