221200589 has 2 divisors, whose sum is σ = 221200590. Its totient is φ = 221200588.

The previous prime is 221200559. The next prime is 221200607. The reversal of 221200589 is 985002122.

221200589 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., 180687364 + 40513225 = 13442^2 + 6365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221200589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221200519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110600294 + 110600295.

It is an arithmetic number, because the mean of its divisors is an integer number (110600295).

Almost surely, 2^221200589 is an apocalyptic number.

It is an amenable number.

221200589 is a deficient number, since it is larger than the sum of its proper divisors (1).

221200589 is an equidigital number, since it uses as much as digits as its factorization.

221200589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 221200589 is about 14872.8137553053. The cubic root of 221200589 is about 604.7772228064. Note that the first 3 decimals are identical.

The spelling of 221200589 in words is "two hundred twenty-one million, two hundred thousand, five hundred eighty-nine".