11202020112221 has 8 divisors (see below), whose sum is σ = 11564386485504. Its totient is φ = 10839716919360.

The previous prime is 11202020112209. The next prime is 11202020112229. The reversal of 11202020112221 is 12221102020211.

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

It is a cyclic number.

It is not a de Polignac number, because 11202020112221 - 2¹⁰ = 11202020111197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11202020112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202020112229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15434636 + ... + 16144101.

It is an arithmetic number, because the mean of its divisors is an integer number (1445548310688).

Almost surely, 2^{11202020112221} is an apocalyptic number.

It is an amenable number.

11202020112221 is a deficient number, since it is larger than the sum of its proper divisors (362366373283).

11202020112221 is a wasteful number, since it uses less digits than its factorization.

11202020112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31590211.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11202020112221 its reverse (12221102020211), we get a palindrome (23423122132432).

The spelling of 11202020112221 in words is "eleven trillion, two hundred two billion, twenty million, one hundred twelve thousand, two hundred twenty-one".