11030013221 has 24 divisors (see below), whose sum is σ = 11540867520. Its totient is φ = 10538326656.

The previous prime is 11030013217. The next prime is 11030013263. The reversal of 11030013221 is 12231003011.

It is not a de Polignac number, because 11030013221 - 2² = 11030013217 is a prime.

It is a super-2 number, since 2×11030013221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11030013196 and 11030013205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11030013271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19384625 + ... + 19385193.

It is an arithmetic number, because the mean of its divisors is an integer number (480869480).

Almost surely, 2^11030013221 is an apocalyptic number.

It is an amenable number.

11030013221 is a deficient number, since it is larger than the sum of its proper divisors (510854299).

11030013221 is an equidigital number, since it uses as much as digits as its factorization.

11030013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11030013221 its reverse (12231003011), we get a palindrome (23261016232).

The spelling of 11030013221 in words is "eleven billion, thirty million, thirteen thousand, two hundred twenty-one".