224211143 has 4 divisors (see below), whose sum is σ = 241458168. Its totient is φ = 206964120.

The previous prime is 224211139. The next prime is 224211161. The reversal of 224211143 is 341112422.

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 224211143 - 2² = 224211139 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 (224210143) 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, 8623493 + ... + 8623518.

It is an arithmetic number, because the mean of its divisors is an integer number (60364542).

Almost surely, 2^224211143 is an apocalyptic number.

224211143 is a deficient number, since it is larger than the sum of its proper divisors (17247025).

224211143 is a wasteful number, since it uses less digits than its factorization.

224211143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17247024.

The product of its digits is 384, while the sum is 20.

The square root of 224211143 is about 14973.6816781979. The cubic root of 224211143 is about 607.5085542440.

Adding to 224211143 its reverse (341112422), we get a palindrome (565323565).

The spelling of 224211143 in words is "two hundred twenty-four million, two hundred eleven thousand, one hundred forty-three".