11130302221 has 2 divisors, whose sum is σ = 11130302222. Its totient is φ = 11130302220.

The previous prime is 11130302219. The next prime is 11130302273. The reversal of 11130302221 is 12220303111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6302136996 + 4828165225 = 79386^2 + 69485^2 .

It is an emirp because it is prime and its reverse (12220303111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11130302221 - 2¹ = 11130302219 is a prime.

Together with 11130302219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11130302195 and 11130302204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11160302221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5565151110 + 5565151111.

It is an arithmetic number, because the mean of its divisors is an integer number (5565151111).

Almost surely, 2^11130302221 is an apocalyptic number.

It is an amenable number.

11130302221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11130302221 is an equidigital number, since it uses as much as digits as its factorization.

11130302221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11130302221 its reverse (12220303111), we get a palindrome (23350605332).

The spelling of 11130302221 in words is "eleven billion, one hundred thirty million, three hundred two thousand, two hundred twenty-one".