11100030221 has 12 divisors (see below), whose sum is σ = 13328807040. Its totient is φ = 9207397080.

The previous prime is 11100030209. The next prime is 11100030233. The reversal of 11100030221 is 12203000111.

It is an interprime number because it is at equal distance from previous prime (11100030209) and next prime (11100030233).

It is a de Polignac number, because none of the positive numbers 2^k-11100030221 is a prime.

It is a super-2 number, since 2×11100030221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100030421) 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, 3652211 + ... + 3655248.

It is an arithmetic number, because the mean of its divisors is an integer number (1110733920).

Almost surely, 2^11100030221 is an apocalyptic number.

It is an amenable number.

11100030221 is a deficient number, since it is larger than the sum of its proper divisors (2228776819).

11100030221 is an equidigital number, since it uses as much as digits as its factorization.

11100030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7307504 (or 7307497 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 11100030221 its reverse (12203000111), we get a palindrome (23303030332).

The spelling of 11100030221 in words is "eleven billion, one hundred million, thirty thousand, two hundred twenty-one".