20516205223022 has 16 divisors (see below), whose sum is σ = 32611966254000. Its totient is φ = 9662804813760.

The previous prime is 20516205223021. The next prime is 20516205223039. The reversal of 20516205223022 is 22032250261502.

It is a self number, because there is not a number n which added to its sum of digits gives 20516205223022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20516205223021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4313749772 + ... + 4313754527.

It is an arithmetic number, because the mean of its divisors is an integer number (2038247890875).

Almost surely, 2^{20516205223022} is an apocalyptic number.

20516205223022 is a deficient number, since it is larger than the sum of its proper divisors (12095761030978).

20516205223022 is a wasteful number, since it uses less digits than its factorization.

20516205223022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8627504371.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 20516205223022 its reverse (22032250261502), we get a palindrome (42548455484524).

The spelling of 20516205223022 in words is "twenty trillion, five hundred sixteen billion, two hundred five million, two hundred twenty-three thousand, twenty-two".