11102102020221 has 16 divisors (see below), whose sum is σ = 15585863755200. Its totient is φ = 7010069125248.

The previous prime is 11102102020213. The next prime is 11102102020231. The reversal of 11102102020221 is 12202020120111.

It is not a de Polignac number, because 11102102020221 - 2³ = 11102102020213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11102102020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102102020201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24562726 + ... + 25010631.

It is an arithmetic number, because the mean of its divisors is an integer number (974116484700).

Almost surely, 2^{11102102020221} is an apocalyptic number.

It is an amenable number.

11102102020221 is a deficient number, since it is larger than the sum of its proper divisors (4483761734979).

11102102020221 is a wasteful number, since it uses less digits than its factorization.

11102102020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49577308.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11102102020221 its reverse (12202020120111), we get a palindrome (23304122140332).

The spelling of 11102102020221 in words is "eleven trillion, one hundred two billion, one hundred two million, twenty thousand, two hundred twenty-one".