11003233221 has 48 divisors (see below), whose sum is σ = 17057005056. Its totient is φ = 6810766848.

The previous prime is 11003233193. The next prime is 11003233223. The reversal of 11003233221 is 12233230011.

It is not a de Polignac number, because 11003233221 - 2²³ = 10994844613 is a prime.

It is a super-2 number, since 2×11003233221² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11003233194 and 11003233203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11003233223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4616196 + ... + 4618578.

It is an arithmetic number, because the mean of its divisors is an integer number (355354272).

Almost surely, 2^11003233221 is an apocalyptic number.

It is an amenable number.

11003233221 is a deficient number, since it is larger than the sum of its proper divisors (6053771835).

11003233221 is a wasteful number, since it uses less digits than its factorization.

11003233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802 (or 2799 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11003233221 its reverse (12233230011), we get a palindrome (23236463232).

The spelling of 11003233221 in words is "eleven billion, three million, two hundred thirty-three thousand, two hundred twenty-one".