11200310221 has 4 divisors (see below), whose sum is σ = 11209514652. Its totient is φ = 11191105792.

The previous prime is 11200310201. The next prime is 11200310249. The reversal of 11200310221 is 12201300211.

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 2008294596 + 9192015625 = 44814^2 + 95875^2 .

It is a cyclic number.

It is not a de Polignac number, because 11200310221 - 2²⁷ = 11066092493 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 (11200310201) 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, 4600390 + ... + 4602823.

It is an arithmetic number, because the mean of its divisors is an integer number (2802378663).

Almost surely, 2^11200310221 is an apocalyptic number.

It is an amenable number.

11200310221 is a deficient number, since it is larger than the sum of its proper divisors (9204431).

11200310221 is an equidigital number, since it uses as much as digits as its factorization.

11200310221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9204430.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11200310221 its reverse (12201300211), we get a palindrome (23401610432).

The spelling of 11200310221 in words is "eleven billion, two hundred million, three hundred ten thousand, two hundred twenty-one".