221234432205 has 8 divisors (see below), whose sum is σ = 353975091552. Its totient is φ = 117991697168.

The previous prime is 221234432179. The next prime is 221234432207. The reversal of 221234432205 is 502234432122.

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 221234432205 - 2⁵ = 221234432173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221234432207) 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 in 7 ways as a sum of consecutive naturals, for example, 7374481059 + ... + 7374481088.

It is an arithmetic number, because the mean of its divisors is an integer number (44246886444).

Almost surely, 2^221234432205 is an apocalyptic number.

It is an amenable number.

221234432205 is a deficient number, since it is larger than the sum of its proper divisors (132740659347).

221234432205 is a wasteful number, since it uses less digits than its factorization.

221234432205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14748962155.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 221234432205 its reverse (502234432122), we get a palindrome (723468864327).

The spelling of 221234432205 in words is "two hundred twenty-one billion, two hundred thirty-four million, four hundred thirty-two thousand, two hundred five".