11003221011 has 8 divisors (see below), whose sum is σ = 14698081744. Its totient is φ = 7321920480.

The previous prime is 11003221007. The next prime is 11003221027. The reversal of 11003221011 is 11012230011.

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

It is not a de Polignac number, because 11003221011 - 2² = 11003221007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11003221511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3388156 + ... + 3391401.

It is an arithmetic number, because the mean of its divisors is an integer number (1837260218).

Almost surely, 2^11003221011 is an apocalyptic number.

11003221011 is a deficient number, since it is larger than the sum of its proper divisors (3694860733).

11003221011 is an equidigital number, since it uses as much as digits as its factorization.

11003221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6780101.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 11003221011 its reverse (11012230011), we get a palindrome (22015451022).

The spelling of 11003221011 in words is "eleven billion, three million, two hundred twenty-one thousand, eleven".