221201359 has 2 divisors, whose sum is σ = 221201360. Its totient is φ = 221201358.

The previous prime is 221201339. The next prime is 221201369. The reversal of 221201359 is 953102122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221201359 - 2²³ = 212812751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221201329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110600679 + 110600680.

It is an arithmetic number, because the mean of its divisors is an integer number (110600680).

Almost surely, 2^221201359 is an apocalyptic number.

221201359 is a deficient number, since it is larger than the sum of its proper divisors (1).

221201359 is an equidigital number, since it uses as much as digits as its factorization.

221201359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 221201359 is about 14872.8396414404. The cubic root of 221201359 is about 604.7779245495. Note that the first 3 decimals are identical.

The spelling of 221201359 in words is "two hundred twenty-one million, two hundred one thousand, three hundred fifty-nine".