221100199 has 8 divisors (see below), whose sum is σ = 226955520. Its totient is φ = 215315256.

The previous prime is 221100193. The next prime is 221100203. The reversal of 221100199 is 991001122.

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 221100199 - 2⁹ = 221099687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221100193) 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, 11199 + ... + 23824.

It is an arithmetic number, because the mean of its divisors is an integer number (28369440).

Almost surely, 2^221100199 is an apocalyptic number.

221100199 is a deficient number, since it is larger than the sum of its proper divisors (5855321).

221100199 is a wasteful number, since it uses less digits than its factorization.

221100199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35189.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 221100199 is about 14869.4384224825. The cubic root of 221100199 is about 604.6857179680.

The spelling of 221100199 in words is "two hundred twenty-one million, one hundred thousand, one hundred ninety-nine".