221104433 has 4 divisors (see below), whose sum is σ = 241204848. Its totient is φ = 201004020.

The previous prime is 221104423. The next prime is 221104441. The reversal of 221104433 is 334401122.

221104433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221104433 - 2⁴ = 221104417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221104423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10050191 + ... + 10050212.

It is an arithmetic number, because the mean of its divisors is an integer number (60301212).

Almost surely, 2^221104433 is an apocalyptic number.

It is an amenable number.

221104433 is a deficient number, since it is larger than the sum of its proper divisors (20100415).

221104433 is a wasteful number, since it uses less digits than its factorization.

221104433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20100414.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 221104433 is about 14869.5807943600. The cubic root of 221104433 is about 604.6895777911.

Adding to 221104433 its reverse (334401122), we get a palindrome (555505555).

The spelling of 221104433 in words is "two hundred twenty-one million, one hundred four thousand, four hundred thirty-three".