221367068321 has 8 divisors (see below), whose sum is σ = 254105434560. Its totient is φ = 188907326928.

The previous prime is 221367068309. The next prime is 221367068323. The reversal of 221367068321 is 123860763122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221367068321 - 2⁶ = 221367068257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221367068323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69654506 + ... + 69657683.

It is an arithmetic number, because the mean of its divisors is an integer number (31763179320).

Almost surely, 2^221367068321 is an apocalyptic number.

It is an amenable number.

221367068321 is a deficient number, since it is larger than the sum of its proper divisors (32738366239).

221367068321 is a wasteful number, since it uses less digits than its factorization.

221367068321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139312423.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 221367068321 in words is "two hundred twenty-one billion, three hundred sixty-seven million, sixty-eight thousand, three hundred twenty-one".