11202102202221 has 24 divisors (see below), whose sum is σ = 18494603449920. Its totient is φ = 6400424399616.

The previous prime is 11202102202199. The next prime is 11202102202261. The reversal of 11202102202221 is 12220220120211.

It is a happy number.

11202102202221 is a `hidden beast` number, since 1 + 12 + 0 + 210 + 220 + 2 + 221 = 666.

It is not a de Polignac number, because 11202102202221 - 2¹¹ = 11202102200173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11202102202194 and 11202102202203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202102202261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10266276 + ... + 11304893.

It is an arithmetic number, because the mean of its divisors is an integer number (770608477080).

Almost surely, 2^{11202102202221} is an apocalyptic number.

It is an amenable number.

11202102202221 is a deficient number, since it is larger than the sum of its proper divisors (7292501247699).

11202102202221 is a wasteful number, since it uses less digits than its factorization.

11202102202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21579425 (or 21579422 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11202102202221 its reverse (12220220120211), we get a palindrome (23422322322432).

The spelling of 11202102202221 in words is "eleven trillion, two hundred two billion, one hundred two million, two hundred two thousand, two hundred twenty-one".