11021100012221 has 8 divisors (see below), whose sum is σ = 12144897330720. Its totient is φ = 9936734178672.

The previous prime is 11021100012203. The next prime is 11021100012313. The reversal of 11021100012221 is 12221000112011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11021100012221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021100012196 and 11021100012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021100012521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9857870651 + ... + 9857871768.

It is an arithmetic number, because the mean of its divisors is an integer number (1518112166340).

Almost surely, 2^{11021100012221} is an apocalyptic number.

It is an amenable number.

11021100012221 is a deficient number, since it is larger than the sum of its proper divisors (1123797318499).

11021100012221 is a wasteful number, since it uses less digits than its factorization.

11021100012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19715742475.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11021100012221 its reverse (12221000112011), we get a palindrome (23242100124232).

The spelling of 11021100012221 in words is "eleven trillion, twenty-one billion, one hundred million, twelve thousand, two hundred twenty-one".