11101112022221 has 8 divisors (see below), whose sum is σ = 12021831672480. Its totient is φ = 10189933508592.

The previous prime is 11101112022199. The next prime is 11101112022229. The reversal of 11101112022221 is 12222021110111.

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

It is a cyclic number.

It is not a de Polignac number, because 11101112022221 - 2¹⁸ = 11101111760077 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 11101112022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101112022229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2385281735 + ... + 2385286388.

It is an arithmetic number, because the mean of its divisors is an integer number (1502728959060).

Almost surely, 2^{11101112022221} is an apocalyptic number.

It is an amenable number.

11101112022221 is a deficient number, since it is larger than the sum of its proper divisors (920719650259).

11101112022221 is a wasteful number, since it uses less digits than its factorization.

11101112022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4770568315.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11101112022221 its reverse (12222021110111), we get a palindrome (23323133132332).

The spelling of 11101112022221 in words is "eleven trillion, one hundred one billion, one hundred twelve million, twenty-two thousand, two hundred twenty-one".