221343106 has 8 divisors (see below), whose sum is σ = 332125200. Its totient is φ = 110634708.

The previous prime is 221343097. The next prime is 221343107. The reversal of 221343106 is 601343122.

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

It is not an unprimeable number, because it can be changed into a prime (221343107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10176 + ... + 23371.

It is an arithmetic number, because the mean of its divisors is an integer number (41515650).

Almost surely, 2^221343106 is an apocalyptic number.

221343106 is a deficient number, since it is larger than the sum of its proper divisors (110782094).

221343106 is a wasteful number, since it uses less digits than its factorization.

221343106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36848.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 221343106 is about 14877.6041754040. The cubic root of 221343106 is about 604.9070785961.

Adding to 221343106 its reverse (601343122), we get a palindrome (822686228).

The spelling of 221343106 in words is "two hundred twenty-one million, three hundred forty-three thousand, one hundred six".