1001003110221 has 16 divisors (see below), whose sum is σ = 1350000411200. Its totient is φ = 659686629888.

The previous prime is 1001003110207. The next prime is 1001003110267. The reversal of 1001003110221 is 1220113001001.

It is not a de Polignac number, because 1001003110221 - 2⁵ = 1001003110189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001003110197 and 1001003110206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001003110291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1752286 + ... + 2252223.

It is an arithmetic number, because the mean of its divisors is an integer number (84375025700).

Almost surely, 2^{1001003110221} is an apocalyptic number.

It is an amenable number.

1001003110221 is a deficient number, since it is larger than the sum of its proper divisors (348997300979).

1001003110221 is an equidigital number, since it uses as much as digits as its factorization.

1001003110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4005468.

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

Adding to 1001003110221 its reverse (1220113001001), we get a palindrome (2221116111222).

The spelling of 1001003110221 in words is "one trillion, one billion, three million, one hundred ten thousand, two hundred twenty-one".