12201143 has 2 divisors, whose sum is σ = 12201144. Its totient is φ = 12201142.

The previous prime is 12201139. The next prime is 12201151. The reversal of 12201143 is 34110221.

It is a weak prime.

It is an emirp because it is prime and its reverse (34110221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12201143 - 2² = 12201139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12201193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100571 + 6100572.

It is an arithmetic number, because the mean of its divisors is an integer number (6100572).

Almost surely, 2^12201143 is an apocalyptic number.

12201143 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201143 is an equidigital number, since it uses as much as digits as its factorization.

12201143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12201143 is about 3493.0134554565. The cubic root of 12201143 is about 230.2149408467.

Adding to 12201143 its reverse (34110221), we get a palindrome (46311364).

The spelling of 12201143 in words is "twelve million, two hundred one thousand, one hundred forty-three".