1105504221 has 8 divisors (see below), whose sum is σ = 1496005984. Its totient is φ = 726002640.

The previous prime is 1105504201. The next prime is 1105504229. The reversal of 1105504221 is 1224055011.

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

It is not a de Polignac number, because 1105504221 - 2¹⁷ = 1105373149 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 (1105504229) 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, 2749810 + ... + 2750211.

It is an arithmetic number, because the mean of its divisors is an integer number (187000748).

Almost surely, 2^1105504221 is an apocalyptic number.

It is an amenable number.

1105504221 is a deficient number, since it is larger than the sum of its proper divisors (390501763).

1105504221 is an equidigital number, since it uses as much as digits as its factorization.

1105504221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500091.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1105504221 is about 33249.1236125105. The cubic root of 1105504221 is about 1033.9990388048. Note that the first 3 decimals are identical.

Adding to 1105504221 its reverse (1224055011), we get a palindrome (2329559232).

The spelling of 1105504221 in words is "one billion, one hundred five million, five hundred four thousand, two hundred twenty-one".