11322120221 has 4 divisors (see below), whose sum is σ = 11458531392. Its totient is φ = 11185709052.

The previous prime is 11322120179. The next prime is 11322120247. The reversal of 11322120221 is 12202122311.

11322120221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 12202122311 = 23 ⋅530527057.

It is a cyclic number.

It is not a de Polignac number, because 11322120221 - 2¹⁰ = 11322119197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11322120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11322128221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68205461 + ... + 68205626.

It is an arithmetic number, because the mean of its divisors is an integer number (2864632848).

Almost surely, 2^11322120221 is an apocalyptic number.

It is an amenable number.

11322120221 is a deficient number, since it is larger than the sum of its proper divisors (136411171).

11322120221 is an equidigital number, since it uses as much as digits as its factorization.

11322120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136411170.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11322120221 its reverse (12202122311), we get a palindrome (23524242532).

The spelling of 11322120221 in words is "eleven billion, three hundred twenty-two million, one hundred twenty thousand, two hundred twenty-one".