11020122113221 has 16 divisors (see below), whose sum is σ = 12090236366320. Its totient is φ = 9982551352320.

The previous prime is 11020122113191. The next prime is 11020122113291. The reversal of 11020122113221 is 12231122102011.

It can be written as a sum of positive squares in 8 ways, for example, as 6160875016321 + 4859247096900 = 2482111^2 + 2204370^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020122113221 - 2³⁹ = 10470366299333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020122113291) 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, 15703686 + ... + 16390423.

It is an arithmetic number, because the mean of its divisors is an integer number (755639772895).

Almost surely, 2^{11020122113221} is an apocalyptic number.

It is an amenable number.

11020122113221 is a deficient number, since it is larger than the sum of its proper divisors (1070114253099).

11020122113221 is a wasteful number, since it uses less digits than its factorization.

11020122113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32094616.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 11020122113221 its reverse (12231122102011), we get a palindrome (23251244215232).

The spelling of 11020122113221 in words is "eleven trillion, twenty billion, one hundred twenty-two million, one hundred thirteen thousand, two hundred twenty-one".