11003322221 has 4 divisors (see below), whose sum is σ = 11004092352. Its totient is φ = 11002552092.

The previous prime is 11003322203. The next prime is 11003322223. The reversal of 11003322221 is 12222330011.

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 not a de Polignac number, because 11003322221 - 2²⁶ = 10936213357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11003322221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11003322223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363221 + ... + 392346.

It is an arithmetic number, because the mean of its divisors is an integer number (2751023088).

Almost surely, 2^11003322221 is an apocalyptic number.

It is an amenable number.

11003322221 is a deficient number, since it is larger than the sum of its proper divisors (770131).

11003322221 is an equidigital number, since it uses as much as digits as its factorization.

11003322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770130.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 11003322221 its reverse (12222330011), we get a palindrome (23225652232).

The spelling of 11003322221 in words is "eleven billion, three million, three hundred twenty-two thousand, two hundred twenty-one".