11322232221 has 8 divisors (see below), whose sum is σ = 15890852320. Its totient is φ = 7150883472.

The previous prime is 11322232213. The next prime is 11322232231. The reversal of 11322232221 is 12223222311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11322232221 - 2³ = 11322232213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11322232231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99317770 + ... + 99317883.

It is an arithmetic number, because the mean of its divisors is an integer number (1986356540).

Almost surely, 2^11322232221 is an apocalyptic number.

It is an amenable number.

11322232221 is a deficient number, since it is larger than the sum of its proper divisors (4568620099).

11322232221 is a wasteful number, since it uses less digits than its factorization.

11322232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198635675.

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

Adding to 11322232221 its reverse (12223222311), we get a palindrome (23545454532).

The spelling of 11322232221 in words is "eleven billion, three hundred twenty-two million, two hundred thirty-two thousand, two hundred twenty-one".