221120343 has 24 divisors (see below), whose sum is σ = 341312400. Its totient is φ = 137458944.

The previous prime is 221120299. The next prime is 221120351. The reversal of 221120343 is 343021122.

It is not a de Polignac number, because 221120343 - 2⁸ = 221120087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221120353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10048 + ... + 23306.

It is an arithmetic number, because the mean of its divisors is an integer number (14221350).

Almost surely, 2^221120343 is an apocalyptic number.

221120343 is a deficient number, since it is larger than the sum of its proper divisors (120192057).

221120343 is a wasteful number, since it uses less digits than its factorization.

221120343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13391 (or 13388 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 221120343 is about 14870.1157695561. The cubic root of 221120343 is about 604.7040813152.

Adding to 221120343 its reverse (343021122), we get a palindrome (564141465).

The spelling of 221120343 in words is "two hundred twenty-one million, one hundred twenty thousand, three hundred forty-three".