22144030221 has 64 divisors (see below), whose sum is σ = 33283768320. Its totient is φ = 13027445760.

The previous prime is 22144030217. The next prime is 22144030247. The reversal of 22144030221 is 12203044122.

It is not a de Polignac number, because 22144030221 - 2² = 22144030217 is a prime.

It is a super-2 number, since 2×22144030221² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22144030201) 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 63 ways as a sum of consecutive naturals, for example, 12146116 + ... + 12147938.

It is an arithmetic number, because the mean of its divisors is an integer number (520058880).

Almost surely, 2^22144030221 is an apocalyptic number.

It is an amenable number.

22144030221 is a deficient number, since it is larger than the sum of its proper divisors (11139738099).

22144030221 is a wasteful number, since it uses less digits than its factorization.

22144030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22144030221 its reverse (12203044122), we get a palindrome (34347074343).

The spelling of 22144030221 in words is "twenty-two billion, one hundred forty-four million, thirty thousand, two hundred twenty-one".