11022343221 has 4 divisors (see below), whose sum is σ = 14696457632. Its totient is φ = 7348228812.

The previous prime is 11022343207. The next prime is 11022343231. The reversal of 11022343221 is 12234322011.

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: 12234322011 = 3 ⋅4078107337.

It is not a de Polignac number, because 11022343221 - 2¹¹ = 11022341173 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 (11022343231) 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, 1837057201 + ... + 1837057206.

It is an arithmetic number, because the mean of its divisors is an integer number (3674114408).

Almost surely, 2^11022343221 is an apocalyptic number.

It is an amenable number.

11022343221 is a deficient number, since it is larger than the sum of its proper divisors (3674114411).

11022343221 is an equidigital number, since it uses as much as digits as its factorization.

11022343221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3674114410.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 11022343221 its reverse (12234322011), we get a palindrome (23256665232).

The spelling of 11022343221 in words is "eleven billion, twenty-two million, three hundred forty-three thousand, two hundred twenty-one".