63221412209 has 2 divisors, whose sum is σ = 63221412210. Its totient is φ = 63221412208.

The previous prime is 63221412187. The next prime is 63221412253. The reversal of 63221412209 is 90221412236.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46180720609 + 17040691600 = 214897^2 + 130540^2 .

It is a cyclic number.

It is not a de Polignac number, because 63221412209 - 2¹² = 63221408113 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (63221412259) 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, 31610706104 + 31610706105.

It is an arithmetic number, because the mean of its divisors is an integer number (31610706105).

Almost surely, 2^63221412209 is an apocalyptic number.

It is an amenable number.

63221412209 is a deficient number, since it is larger than the sum of its proper divisors (1).

63221412209 is an equidigital number, since it uses as much as digits as its factorization.

63221412209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 63221412209 in words is "sixty-three billion, two hundred twenty-one million, four hundred twelve thousand, two hundred nine".