22422443021 has 16 divisors (see below), whose sum is σ = 25535692800. Its totient is φ = 19489121520.

The previous prime is 22422442993. The next prime is 22422443041. The reversal of 22422443021 is 12034422422.

It is not a de Polignac number, because 22422443021 - 2⁶ = 22422442957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22422443041) 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 15 ways as a sum of consecutive naturals, for example, 588476 + ... + 625418.

It is an arithmetic number, because the mean of its divisors is an integer number (1595980800).

Almost surely, 2^22422443021 is an apocalyptic number.

It is an amenable number.

22422443021 is a deficient number, since it is larger than the sum of its proper divisors (3113249779).

22422443021 is a wasteful number, since it uses less digits than its factorization.

22422443021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39376.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 22422443021 its reverse (12034422422), we get a palindrome (34456865443).

The spelling of 22422443021 in words is "twenty-two billion, four hundred twenty-two million, four hundred forty-three thousand, twenty-one".