22031110221 has 8 divisors (see below), whose sum is σ = 29537106144. Its totient is φ = 14606260560.

The previous prime is 22031110187. The next prime is 22031110267. The reversal of 22031110221 is 12201113022.

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

It is not a de Polignac number, because 22031110221 - 2⁷ = 22031110093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22031110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22031110421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20285931 + ... + 20287016.

It is an arithmetic number, because the mean of its divisors is an integer number (3692138268).

Almost surely, 2^22031110221 is an apocalyptic number.

It is an amenable number.

22031110221 is a deficient number, since it is larger than the sum of its proper divisors (7505995923).

22031110221 is a wasteful number, since it uses less digits than its factorization.

22031110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40573131.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22031110221 its reverse (12201113022), we get a palindrome (34232223243).

The spelling of 22031110221 in words is "twenty-two billion, thirty-one million, one hundred ten thousand, two hundred twenty-one".