22220440004 has 12 divisors (see below), whose sum is σ = 44440880064. Its totient is φ = 9523045704.

The previous prime is 22220440003. The next prime is 22220440007. The reversal of 22220440004 is 40004402222.

22220440004 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (22220440003) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 396793544 + ... + 396793599.

It is an arithmetic number, because the mean of its divisors is an integer number (3703406672).

Almost surely, 2^22220440004 is an apocalyptic number.

It is an amenable number.

22220440004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22220440004 is a wasteful number, since it uses less digits than its factorization.

22220440004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793587154 (or 793587152 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 22220440004 its reverse (40004402222), we get a palindrome (62224842226).

The spelling of 22220440004 in words is "twenty-two billion, two hundred twenty million, four hundred forty thousand, four".