221300211 has 8 divisors (see below), whose sum is σ = 321891264. Its totient is φ = 134121320.

The previous prime is 221300171. The next prime is 221300213. The reversal of 221300211 is 112003122.

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 221300211 - 2¹⁰ = 221299187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221300213) 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, 3353001 + ... + 3353066.

It is an arithmetic number, because the mean of its divisors is an integer number (40236408).

Almost surely, 2^221300211 is an apocalyptic number.

221300211 is a deficient number, since it is larger than the sum of its proper divisors (100591053).

221300211 is a wasteful number, since it uses less digits than its factorization.

221300211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6706081.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 221300211 is about 14876.1625091957. The cubic root of 221300211 is about 604.8680002530.

Adding to 221300211 its reverse (112003122), we get a palindrome (333303333).

The spelling of 221300211 in words is "two hundred twenty-one million, three hundred thousand, two hundred eleven".