221064063073 has 4 divisors (see below), whose sum is σ = 252644643520. Its totient is φ = 189483482628.

The previous prime is 221064063071. The next prime is 221064063109. The reversal of 221064063073 is 370360460122.

221064063073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221064063073 - 2¹ = 221064063071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221064063071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15790290213 + ... + 15790290226.

It is an arithmetic number, because the mean of its divisors is an integer number (63161160880).

Almost surely, 2^221064063073 is an apocalyptic number.

It is an amenable number.

221064063073 is a deficient number, since it is larger than the sum of its proper divisors (31580580447).

221064063073 is an equidigital number, since it uses as much as digits as its factorization.

221064063073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31580580446.

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 221064063073 in words is "two hundred twenty-one billion, sixty-four million, sixty-three thousand, seventy-three".