20311220222022 has 16 divisors (see below), whose sum is σ = 40628271220992. Its totient is φ = 6769434944520.

The previous prime is 20311220221969. The next prime is 20311220222047. The reversal of 20311220222022 is 22022202211302.

It is a self number, because there is not a number n which added to its sum of digits gives 20311220222022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242903754 + ... + 242987357.

It is an arithmetic number, because the mean of its divisors is an integer number (2539266951312).

Almost surely, 2^{20311220222022} is an apocalyptic number.

20311220222022 is an abundant number, since it is smaller than the sum of its proper divisors (20317050998970).

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

20311220222022 is a wasteful number, since it uses less digits than its factorization.

20311220222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485898083.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20311220222022 its reverse (22022202211302), we get a palindrome (42333422433324).

The spelling of 20311220222022 in words is "twenty trillion, three hundred eleven billion, two hundred twenty million, two hundred twenty-two thousand, twenty-two".