11320100221 has 4 divisors (see below), whose sum is σ = 11320337952. Its totient is φ = 11319862492.

The previous prime is 11320100189. The next prime is 11320100237. The reversal of 11320100221 is 12200102311.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12200102311 = 41 ⋅297563471.

It is a cyclic number.

It is not a de Polignac number, because 11320100221 - 2⁵ = 11320100189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11326100221) 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, 20065 + ... + 151798.

It is an arithmetic number, because the mean of its divisors is an integer number (2830084488).

Almost surely, 2^11320100221 is an apocalyptic number.

It is an amenable number.

11320100221 is a deficient number, since it is larger than the sum of its proper divisors (237731).

11320100221 is an equidigital number, since it uses as much as digits as its factorization.

11320100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237730.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11320100221 its reverse (12200102311), we get a palindrome (23520202532).

The spelling of 11320100221 in words is "eleven billion, three hundred twenty million, one hundred thousand, two hundred twenty-one".