22022220444 has 48 divisors (see below), whose sum is σ = 62180391168. Its totient is φ = 5921941248.

The previous prime is 22022220421. The next prime is 22022220511. The reversal of 22022220444 is 44402222022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7709434 + ... + 7712289.

It is an arithmetic number, because the mean of its divisors is an integer number (1295424816).

Almost surely, 2^22022220444 is an apocalyptic number.

It is an amenable number.

22022220444 is an abundant number, since it is smaller than the sum of its proper divisors (40158170724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22022220444 is a wasteful number, since it uses less digits than its factorization.

22022220444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15421754 (or 15421752 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 22022220444 its reverse (44402222022), we get a palindrome (66424442466).

The spelling of 22022220444 in words is "twenty-two billion, twenty-two million, two hundred twenty thousand, four hundred forty-four".