221110219 has 8 divisors (see below), whose sum is σ = 242948160. Its totient is φ = 199561800.

The previous prime is 221110213. The next prime is 221110237. The reversal of 221110219 is 912011122.

It is a happy number.

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 221110219 - 2¹³ = 221102027 is a prime.

It is a super-2 number, since 2×221110219² = 97779457892455922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221110196 and 221110205.

It is not an unprimeable number, because it can be changed into a prime (221110213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70777 + ... + 73834.

It is an arithmetic number, because the mean of its divisors is an integer number (30368520).

Almost surely, 2^221110219 is an apocalyptic number.

221110219 is a deficient number, since it is larger than the sum of its proper divisors (21837941).

221110219 is a wasteful number, since it uses less digits than its factorization.

221110219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144761.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 221110219 is about 14869.7753513629. The cubic root of 221110219 is about 604.6948523776.

The spelling of 221110219 in words is "two hundred twenty-one million, one hundred ten thousand, two hundred nineteen".