221224004343 has 24 divisors (see below), whose sum is σ = 327640216176. Its totient is φ = 143753385600.

The previous prime is 221224004329. The next prime is 221224004399. The reversal of 221224004343 is 343400422122.

221224004343 is a `hidden beast` number, since 2 + 2 + 1 + 224 + 0 + 0 + 434 + 3 = 666.

It is not a de Polignac number, because 221224004343 - 2⁴ = 221224004327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221224004843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127821 + ... + 677337.

It is an arithmetic number, because the mean of its divisors is an integer number (13651675674).

Almost surely, 2^221224004343 is an apocalyptic number.

221224004343 is a deficient number, since it is larger than the sum of its proper divisors (106416211833).

221224004343 is a wasteful number, since it uses less digits than its factorization.

221224004343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550655 (or 550652 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 221224004343 its reverse (343400422122), we get a palindrome (564624426465).

The spelling of 221224004343 in words is "two hundred twenty-one billion, two hundred twenty-four million, four thousand, three hundred forty-three".