221367068079 has 4 divisors (see below), whose sum is σ = 295156090776. Its totient is φ = 147578045384.

The previous prime is 221367068071. The next prime is 221367068119. The reversal of 221367068079 is 970860763122.

221367068079 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.

It is a cyclic number.

It is not a de Polignac number, because 221367068079 - 2³ = 221367068071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221367068071) 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, 36894511344 + ... + 36894511349.

It is an arithmetic number, because the mean of its divisors is an integer number (73789022694).

Almost surely, 2^221367068079 is an apocalyptic number.

221367068079 is a deficient number, since it is larger than the sum of its proper divisors (73789022697).

221367068079 is an equidigital number, since it uses as much as digits as its factorization.

221367068079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73789022696.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 221367068079 in words is "two hundred twenty-one billion, three hundred sixty-seven million, sixty-eight thousand, seventy-nine".