221110 has 8 divisors (see below), whose sum is σ = 398016.
Its totient is φ = 88440.
The previous prime is 221101. The next prime is 221159. The reversal of 221110 is 11122.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a plaindrome in base 15.
It is a nialpdrome in base 10.
It is a junction number, because it is equal to n+sod(n) for n = 221093 and 221102.
It is a congruent number.
It is an unprimeable number.
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, 11046 + ... + 11065.
It is an arithmetic number, because the mean of its divisors is an integer number (49752).
2221110 is an apocalyptic number.
221110 is a deficient number, since it is larger than the sum of its proper divisors (176906).
221110 is a wasteful number, since it uses less digits than its factorization.
221110 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22118.
The product of its (nonzero) digits is 4, while the sum is 7.
The square root of 221110 is about 470.2233511854.
The cubic root of 221110 is about 60.4694652736.
Adding to 221110 its reverse (11122), we get a palindrome (232232).
It can be divided in two parts, 221 and 110, that multiplied together give a triangular number (24310 = T220).
The spelling of 221110 in words is "two hundred twenty-one thousand, one hundred ten", and thus it is an iban number.