221300063 has 2 divisors, whose sum is σ = 221300064. Its totient is φ = 221300062.

The previous prime is 221300039. The next prime is 221300137. The reversal of 221300063 is 360003122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221300063 - 2¹² = 221295967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221303063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110650031 + 110650032.

It is an arithmetic number, because the mean of its divisors is an integer number (110650032).

Almost surely, 2^221300063 is an apocalyptic number.

221300063 is a deficient number, since it is larger than the sum of its proper divisors (1).

221300063 is an equidigital number, since it uses as much as digits as its factorization.

221300063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 221300063 is about 14876.1575347937. The cubic root of 221300063 is about 604.8678654129.

Adding to 221300063 its reverse (360003122), we get a palindrome (581303185).

The spelling of 221300063 in words is "two hundred twenty-one million, three hundred thousand, sixty-three".