11321111112222 has 64 divisors (see below), whose sum is σ = 23273694259200. Its totient is φ = 3668631264000.

The previous prime is 11321111112217. The next prime is 11321111112247. The reversal of 11321111112222 is 22221111112311.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2051294779 + ... + 2051300297.

It is an arithmetic number, because the mean of its divisors is an integer number (363651472800).

Almost surely, 2^{11321111112222} is an apocalyptic number.

11321111112222 is an abundant number, since it is smaller than the sum of its proper divisors (11952583146978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11321111112222 is a wasteful number, since it uses less digits than its factorization.

11321111112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11641.

The product of its digits is 96, while the sum is 21.

Adding to 11321111112222 its reverse (22221111112311), we get a palindrome (33542222224533).

The spelling of 11321111112222 in words is "eleven trillion, three hundred twenty-one billion, one hundred eleven million, one hundred twelve thousand, two hundred twenty-two".