221320030322243 has 8 divisors (see below), whose sum is σ = 224363343647088. Its totient is φ = 218277028675584.

The previous prime is 221320030322177. The next prime is 221320030322263. The reversal of 221320030322243 is 342223030023122.

221320030322243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221320030322243 - 2²² = 221320026127939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221320030322263) 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, 76489421 + ... + 79330142.

It is an arithmetic number, because the mean of its divisors is an integer number (28045417955886).

Almost surely, 2^{221320030322243} is an apocalyptic number.

221320030322243 is a deficient number, since it is larger than the sum of its proper divisors (3043313324845).

221320030322243 is a wasteful number, since it uses less digits than its factorization.

221320030322243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155839093.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 221320030322243 its reverse (342223030023122), we get a palindrome (563543060345365).

The spelling of 221320030322243 in words is "two hundred twenty-one trillion, three hundred twenty billion, thirty million, three hundred twenty-two thousand, two hundred forty-three".