11324022221 has 4 divisors (see below), whose sum is σ = 11564958912. Its totient is φ = 11083085532.

The previous prime is 11324022197. The next prime is 11324022223. The reversal of 11324022221 is 12222042311.

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: 12222042311 = 71 ⋅172141441.

It is a cyclic number.

It is not a de Polignac number, because 11324022221 - 2¹⁰ = 11324021197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11324022193 and 11324022202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11324022223) 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, 120468275 + ... + 120468368.

It is an arithmetic number, because the mean of its divisors is an integer number (2891239728).

Almost surely, 2^11324022221 is an apocalyptic number.

It is an amenable number.

11324022221 is a deficient number, since it is larger than the sum of its proper divisors (240936691).

11324022221 is an equidigital number, since it uses as much as digits as its factorization.

11324022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240936690.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11324022221 its reverse (12222042311), we get a palindrome (23546064532).

The spelling of 11324022221 in words is "eleven billion, three hundred twenty-four million, twenty-two thousand, two hundred twenty-one".