11200404221 has 4 divisors (see below), whose sum is σ = 11789899200. Its totient is φ = 10610909244.

The previous prime is 11200404217. The next prime is 11200404223. The reversal of 11200404221 is 12240400211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11200404221 - 2² = 11200404217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11200404221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200404223) 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, 294747461 + ... + 294747498.

It is an arithmetic number, because the mean of its divisors is an integer number (2947474800).

Almost surely, 2^11200404221 is an apocalyptic number.

It is an amenable number.

11200404221 is a deficient number, since it is larger than the sum of its proper divisors (589494979).

11200404221 is an equidigital number, since it uses as much as digits as its factorization.

11200404221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589494978.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 11200404221 its reverse (12240400211), we get a palindrome (23440804432).

The spelling of 11200404221 in words is "eleven billion, two hundred million, four hundred four thousand, two hundred twenty-one".