221105343 has 8 divisors (see below), whose sum is σ = 301079808. Its totient is φ = 144267224.

The previous prime is 221105341. The next prime is 221105351. The reversal of 221105343 is 343501122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221105343 - 2¹ = 221105341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221105341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783921 + ... + 784202.

It is an arithmetic number, because the mean of its divisors is an integer number (37634976).

Almost surely, 2^221105343 is an apocalyptic number.

221105343 is a deficient number, since it is larger than the sum of its proper divisors (79974465).

221105343 is a wasteful number, since it uses less digits than its factorization.

221105343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568173.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 221105343 is about 14869.6113937117. The cubic root of 221105343 is about 604.6904073641.

Adding to 221105343 its reverse (343501122), we get a palindrome (564606465).

The spelling of 221105343 in words is "two hundred twenty-one million, one hundred five thousand, three hundred forty-three".