1100221221103 has 8 divisors (see below), whose sum is σ = 1165099894272. Its totient is φ = 1035360301056.

The previous prime is 1100221221059. The next prime is 1100221221163. The reversal of 1100221221103 is 3011221220011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100221221103 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 (1100221221163) 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, 4310575 + ... + 4558672.

It is an arithmetic number, because the mean of its divisors is an integer number (145637486784).

Almost surely, 2^{1100221221103} is an apocalyptic number.

1100221221103 is a deficient number, since it is larger than the sum of its proper divisors (64878673169).

1100221221103 is an equidigital number, since it uses as much as digits as its factorization.

1100221221103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8876561.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1100221221103 its reverse (3011221220011), we get a palindrome (4111442441114).

The spelling of 1100221221103 in words is "one trillion, one hundred billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred three".