11013032221 has 2 divisors, whose sum is σ = 11013032222. Its totient is φ = 11013032220.

The previous prime is 11013032213. The next prime is 11013032227. The reversal of 11013032221 is 12223031011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8084707225 + 2928324996 = 89915^2 + 54114^2 .

It is a cyclic number.

It is not a de Polignac number, because 11013032221 - 2³ = 11013032213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11013032195 and 11013032204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11013032227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506516110 + 5506516111.

It is an arithmetic number, because the mean of its divisors is an integer number (5506516111).

Almost surely, 2^11013032221 is an apocalyptic number.

It is an amenable number.

11013032221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11013032221 is an equidigital number, since it uses as much as digits as its factorization.

11013032221 is an odious number, because the sum of its binary digits is odd.

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

Adding to 11013032221 its reverse (12223031011), we get a palindrome (23236063232).

The spelling of 11013032221 in words is "eleven billion, thirteen million, thirty-two thousand, two hundred twenty-one".