22020402004 has 12 divisors (see below), whose sum is σ = 38599827028. Its totient is φ = 10991880000.

The previous prime is 22020401969. The next prime is 22020402007. The reversal of 22020402004 is 40020402022.

It can be written as a sum of positive squares in 2 ways, for example, as 10215144900 + 11805257104 = 101070^2 + 108652^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020402007) 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, 4577547 + ... + 4582354.

Almost surely, 2^22020402004 is an apocalyptic number.

It is an amenable number.

22020402004 is a deficient number, since it is larger than the sum of its proper divisors (16579425024).

22020402004 is a wasteful number, since it uses less digits than its factorization.

22020402004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9160506 (or 9160504 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 22020402004 its reverse (40020402022), we get a palindrome (62040804026).

The spelling of 22020402004 in words is "twenty-two billion, twenty million, four hundred two thousand, four".