221041104 has 20 divisors (see below), whose sum is σ = 571022976. Its totient is φ = 73680352.

The previous prime is 221041099. The next prime is 221041159. The reversal of 221041104 is 401140122.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2302464 + ... + 2302559.

Almost surely, 2^221041104 is an apocalyptic number.

221041104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

221041104 is an abundant number, since it is smaller than the sum of its proper divisors (349981872).

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

221041104 is a wasteful number, since it uses less digits than its factorization.

221041104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4605034 (or 4605028 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 221041104 is about 14867.4511601686. The cubic root of 221041104 is about 604.6318403041.

Adding to 221041104 its reverse (401140122), we get a palindrome (622181226).

The spelling of 221041104 in words is "two hundred twenty-one million, forty-one thousand, one hundred four".