12210143 has 4 divisors (see below), whose sum is σ = 13320168. Its totient is φ = 11100120.

The previous prime is 12210137. The next prime is 12210173. The reversal of 12210143 is 34101221.

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 12210143 - 2⁸ = 12209887 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 (12210113) 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, 554996 + ... + 555017.

It is an arithmetic number, because the mean of its divisors is an integer number (3330042).

Almost surely, 2^12210143 is an apocalyptic number.

12210143 is a deficient number, since it is larger than the sum of its proper divisors (1110025).

12210143 is a wasteful number, since it uses less digits than its factorization.

12210143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110024.

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

The square root of 12210143 is about 3494.3015038774. The cubic root of 12210143 is about 230.2715318626.

Adding to 12210143 its reverse (34101221), we get a palindrome (46311364).

The spelling of 12210143 in words is "twelve million, two hundred ten thousand, one hundred forty-three".