221104101 has 8 divisors (see below), whose sum is σ = 295072480. Its totient is φ = 147269232.

The previous prime is 221104097. The next prime is 221104127. The reversal of 221104101 is 101401122.

It is a happy number.

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

It is not a de Polignac number, because 221104101 - 2² = 221104097 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 (221104171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29446 + ... + 36183.

It is an arithmetic number, because the mean of its divisors is an integer number (36884060).

Almost surely, 2^221104101 is an apocalyptic number.

It is an amenable number.

221104101 is a deficient number, since it is larger than the sum of its proper divisors (73968379).

221104101 is a wasteful number, since it uses less digits than its factorization.

221104101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66755.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 221104101 is about 14869.5696306248. The cubic root of 221104101 is about 604.6892751332.

Adding to 221104101 its reverse (101401122), we get a palindrome (322505223).

The spelling of 221104101 in words is "two hundred twenty-one million, one hundred four thousand, one hundred one".