20222102100020 has 24 divisors (see below), whose sum is σ = 42474585960744. Its totient is φ = 8087284354176.

The previous prime is 20222102099933. The next prime is 20222102100023. The reversal of 20222102100020 is 2000120122202.

It can be written as a sum of positive squares in 4 ways, for example, as 3385622080036 + 16836480019984 = 1840006^2 + 4103228^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20222102099968 and 20222102100004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222102100023) by changing a digit.

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, 97173827 + ... + 97381706.

It is an arithmetic number, because the mean of its divisors is an integer number (1769774415031).

Almost surely, 2^{20222102100020} is an apocalyptic number.

20222102100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20222102100020 is an abundant number, since it is smaller than the sum of its proper divisors (22252483860724).

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

20222102100020 is a wasteful number, since it uses less digits than its factorization.

20222102100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194560739 (or 194560737 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20222102100020 its reverse (2000120122202), we get a palindrome (22222222222222).

The spelling of 20222102100020 in words is "twenty trillion, two hundred twenty-two billion, one hundred two million, one hundred thousand, twenty".