11000032221 has 4 divisors (see below), whose sum is σ = 14666709632. Its totient is φ = 7333354812.

The previous prime is 11000032213. The next prime is 11000032231. The reversal of 11000032221 is 12223000011.

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 not a de Polignac number, because 11000032221 - 2³ = 11000032213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11000032197 and 11000032206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000032231) 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, 1833338701 + ... + 1833338706.

It is an arithmetic number, because the mean of its divisors is an integer number (3666677408).

Almost surely, 2^11000032221 is an apocalyptic number.

It is an amenable number.

11000032221 is a deficient number, since it is larger than the sum of its proper divisors (3666677411).

11000032221 is an equidigital number, since it uses as much as digits as its factorization.

11000032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3666677410.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 11000032221 its reverse (12223000011), we get a palindrome (23223032232).

The spelling of 11000032221 in words is "eleven billion, thirty-two thousand, two hundred twenty-one".