11200220102221 has 4 divisors (see below), whose sum is σ = 11200231741500. Its totient is φ = 11200208462944.

The previous prime is 11200220102179. The next prime is 11200220102261. The reversal of 11200220102221 is 12220102200211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3454713646596 + 7745506455625 = 1858686^2 + 2783075^2 .

It is a cyclic number.

It is not a de Polignac number, because 11200220102221 - 2²¹ = 11200218005069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11200220102195 and 11200220102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200220102261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4231816 + ... + 6348913.

It is an arithmetic number, because the mean of its divisors is an integer number (2800057935375).

Almost surely, 2^{11200220102221} is an apocalyptic number.

It is an amenable number.

11200220102221 is a deficient number, since it is larger than the sum of its proper divisors (11639279).

11200220102221 is a wasteful number, since it uses less digits than its factorization.

11200220102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11639278.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11200220102221 its reverse (12220102200211), we get a palindrome (23420322302432).

The spelling of 11200220102221 in words is "eleven trillion, two hundred billion, two hundred twenty million, one hundred two thousand, two hundred twenty-one".