221141104 has 40 divisors (see below), whose sum is σ = 449594240. Its totient is φ = 105235200.

The previous prime is 221141101. The next prime is 221141111. The reversal of 221141104 is 401141122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221141101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26602 + ... + 33910.

It is an arithmetic number, because the mean of its divisors is an integer number (11239856).

Almost surely, 2^221141104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221141104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224797120).

221141104 is an abundant number, since it is smaller than the sum of its proper divisors (228453136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221141104 is a wasteful number, since it uses less digits than its factorization.

221141104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7409 (or 7403 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 221141104 is about 14870.8138311257. The cubic root of 221141104 is about 604.7230059551.

Adding to 221141104 its reverse (401141122), we get a palindrome (622282226).

The spelling of 221141104 in words is "two hundred twenty-one million, one hundred forty-one thousand, one hundred four".