11033201221 has 8 divisors (see below), whose sum is σ = 12610008320. Its totient is φ = 9456553008.

The previous prime is 11033201203. The next prime is 11033201233. The reversal of 11033201221 is 12210233011.

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

It is not a de Polignac number, because 11033201221 - 2⁵ = 11033201189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11033201195 and 11033201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11033201521) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 249460 + ... + 290338.

It is an arithmetic number, because the mean of its divisors is an integer number (1576251040).

Almost surely, 2^11033201221 is an apocalyptic number.

It is an amenable number.

11033201221 is a deficient number, since it is larger than the sum of its proper divisors (1576807099).

11033201221 is an equidigital number, since it uses as much as digits as its factorization.

11033201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79443.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11033201221 its reverse (12210233011), we get a palindrome (23243434232).

The spelling of 11033201221 in words is "eleven billion, thirty-three million, two hundred one thousand, two hundred twenty-one".