22434332221 has 16 divisors (see below), whose sum is σ = 26136230400. Its totient is φ = 18858243888.

The previous prime is 22434332209. The next prime is 22434332237. The reversal of 22434332221 is 12223343422.

It is a cyclic number.

It is not a de Polignac number, because 22434332221 - 2⁷ = 22434332093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22434332221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22434332321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108226 + ... + 237868.

It is an arithmetic number, because the mean of its divisors is an integer number (1633514400).

Almost surely, 2^22434332221 is an apocalyptic number.

It is an amenable number.

22434332221 is a deficient number, since it is larger than the sum of its proper divisors (3701898179).

22434332221 is a wasteful number, since it uses less digits than its factorization.

22434332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130128.

The product of its digits is 13824, while the sum is 28.

Adding to 22434332221 its reverse (12223343422), we get a palindrome (34657675643).

The spelling of 22434332221 in words is "twenty-two billion, four hundred thirty-four million, three hundred thirty-two thousand, two hundred twenty-one".