11102021102221 has 24 divisors (see below), whose sum is σ = 13024294508160. Its totient is φ = 9435529397952.

The previous prime is 11102021102219. The next prime is 11102021102231. The reversal of 11102021102221 is 12220112020111.

It is not a de Polignac number, because 11102021102221 - 2¹ = 11102021102219 is a prime.

It is a super-2 number, since 2×11102021102221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11102021102195 and 11102021102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102021102231) 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 23 ways as a sum of consecutive naturals, for example, 694330 + ... + 4762996.

It is an arithmetic number, because the mean of its divisors is an integer number (542678937840).

Almost surely, 2^{11102021102221} is an apocalyptic number.

It is an amenable number.

11102021102221 is a deficient number, since it is larger than the sum of its proper divisors (1922273405939).

11102021102221 is a wasteful number, since it uses less digits than its factorization.

11102021102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4069153 (or 4069146 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11102021102221 its reverse (12220112020111), we get a palindrome (23322133122332).

The spelling of 11102021102221 in words is "eleven trillion, one hundred two billion, twenty-one million, one hundred two thousand, two hundred twenty-one".