20522204004404 has 6 divisors (see below), whose sum is σ = 35913857007714. Its totient is φ = 10261102002200.

The previous prime is 20522204004391. The next prime is 20522204004413. The reversal of 20522204004404 is 40440040222502.

It can be written as a sum of positive squares in only one way, i.e., 17997092320804 + 2525111683600 = 4242298^2 + 1589060^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2565275500547 + ... + 2565275500554.

It is an arithmetic number, because the mean of its divisors is an integer number (5985642834619).

Almost surely, 2^{20522204004404} is an apocalyptic number.

It is an amenable number.

20522204004404 is a deficient number, since it is larger than the sum of its proper divisors (15391653003310).

20522204004404 is a wasteful number, since it uses less digits than its factorization.

20522204004404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5130551001105 (or 5130551001103 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 29.

Adding to 20522204004404 its reverse (40440040222502), we get a palindrome (60962244226906).

The spelling of 20522204004404 in words is "twenty trillion, five hundred twenty-two billion, two hundred four million, four thousand, four hundred four".