11113033221 has 12 divisors (see below), whose sum is σ = 16646683872. Its totient is φ = 7408688652.

The previous prime is 11113033199. The next prime is 11113033223. The reversal of 11113033221 is 12233031111.

It is not a de Polignac number, because 11113033221 - 2⁹ = 11113032709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11113033194 and 11113033203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113033223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22866081 + ... + 22866566.

It is an arithmetic number, because the mean of its divisors is an integer number (1387223656).

Almost surely, 2^11113033221 is an apocalyptic number.

It is an amenable number.

11113033221 is a deficient number, since it is larger than the sum of its proper divisors (5533650651).

11113033221 is an frugal number, since it uses more digits than its factorization.

11113033221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45732662 (or 45732650 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11113033221 its reverse (12233031111), we get a palindrome (23346064332).

The spelling of 11113033221 in words is "eleven billion, one hundred thirteen million, thirty-three thousand, two hundred twenty-one".