11023332221 has 4 divisors (see below), whose sum is σ = 12025453344. Its totient is φ = 10021211100.

The previous prime is 11023332211. The next prime is 11023332241. The reversal of 11023332221 is 12223332011.

11023332221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11023332221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11023332193 and 11023332202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11023332211) 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 3 ways as a sum of consecutive naturals, for example, 501060545 + ... + 501060566.

It is an arithmetic number, because the mean of its divisors is an integer number (3006363336).

Almost surely, 2^11023332221 is an apocalyptic number.

11023332221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11023332221 is a deficient number, since it is larger than the sum of its proper divisors (1002121123).

11023332221 is a wasteful number, since it uses less digits than its factorization.

11023332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002121122.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 11023332221 its reverse (12223332011), we get a palindrome (23246664232).

The spelling of 11023332221 in words is "eleven billion, twenty-three million, three hundred thirty-two thousand, two hundred twenty-one".