11000202221 has 2 divisors, whose sum is σ = 11000202222. Its totient is φ = 11000202220.

The previous prime is 11000202217. The next prime is 11000202253. The reversal of 11000202221 is 12220200011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9865455625 + 1134746596 = 99325^2 + 33686^2 .

It is an emirp because it is prime and its reverse (12220200011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11000202221 - 2² = 11000202217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11000202211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500101110 + 5500101111.

It is an arithmetic number, because the mean of its divisors is an integer number (5500101111).

Almost surely, 2^11000202221 is an apocalyptic number.

It is an amenable number.

11000202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11000202221 is an equidigital number, since it uses as much as digits as its factorization.

11000202221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 11000202221 its reverse (12220200011), we get a palindrome (23220402232).

The spelling of 11000202221 in words is "eleven billion, two hundred two thousand, two hundred twenty-one".