221104244 has 24 divisors (see below), whose sum is σ = 427508928. Its totient is φ = 99524480.

The previous prime is 221104243. The next prime is 221104249. The reversal of 221104244 is 442401122.

221104244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221104243) 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, 69122 + ... + 72249.

It is an arithmetic number, because the mean of its divisors is an integer number (17812872).

Almost surely, 2^221104244 is an apocalyptic number.

It is an amenable number.

221104244 is a deficient number, since it is larger than the sum of its proper divisors (206404684).

221104244 is a wasteful number, since it uses less digits than its factorization.

221104244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141415 (or 141413 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 221104244 is about 14869.5744391021. The cubic root of 221104244 is about 604.6894054949.

Adding to 221104244 its reverse (442401122), we get a palindrome (663505366).

The spelling of 221104244 in words is "two hundred twenty-one million, one hundred four thousand, two hundred forty-four".