11088221 has 2 divisors, whose sum is σ = 11088222. Its totient is φ = 11088220.

The previous prime is 11088157. The next prime is 11088227. The reversal of 11088221 is 12288011.

It is a happy number.

11088221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10982596 + 105625 = 3314^2 + 325^2 .

It is an emirp because it is prime and its reverse (12288011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11088221 - 2⁶ = 11088157 is a prime.

It is a Sophie Germain prime.

It is a Chen 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 (11088227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5544110 + 5544111.

It is an arithmetic number, because the mean of its divisors is an integer number (5544111).

Almost surely, 2^11088221 is an apocalyptic number.

It is an amenable number.

11088221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11088221 is an equidigital number, since it uses as much as digits as its factorization.

11088221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 11088221 is about 3329.8980464873. The cubic root of 11088221 is about 222.9909774011.

The spelling of 11088221 in words is "eleven million, eighty-eight thousand, two hundred twenty-one".