221003089 has 2 divisors, whose sum is σ = 221003090. Its totient is φ = 221003088.

The previous prime is 221003017. The next prime is 221003093. The reversal of 221003089 is 980300122.

221003089 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., 206410689 + 14592400 = 14367^2 + 3820^2 .

It is a cyclic number.

It is not a de Polignac number, because 221003089 - 2¹³ = 220994897 is a prime.

It is not a weakly prime, because it can be changed into another prime (221006089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501544 + 110501545.

It is an arithmetic number, because the mean of its divisors is an integer number (110501545).

Almost surely, 2^221003089 is an apocalyptic number.

It is an amenable number.

221003089 is a deficient number, since it is larger than the sum of its proper divisors (1).

221003089 is an equidigital number, since it uses as much as digits as its factorization.

221003089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 221003089 is about 14866.1726412685. The cubic root of 221003089 is about 604.5971764689.

The spelling of 221003089 in words is "two hundred twenty-one million, three thousand, eighty-nine".