20012122202020 has 384 divisors, whose sum is σ = 49876041600000. Its totient is φ = 6677962776576.

The previous prime is 20012122201987. The next prime is 20012122202123. The reversal of 20012122202020 is 2020222121002.

It is a junction number, because it is equal to n+sod(n) for n = 20012122201985 and 20012122202003.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4205108401 + ... + 4205113159.

It is an arithmetic number, because the mean of its divisors is an integer number (129885525000).

Almost surely, 2^{20012122202020} is an apocalyptic number.

20012122202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20012122202020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24938020800000).

20012122202020 is an abundant number, since it is smaller than the sum of its proper divisors (29863919397980).

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

20012122202020 is a wasteful number, since it uses less digits than its factorization.

20012122202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5175 (or 5173 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20012122202020 its reverse (2020222121002), we get a palindrome (22032344323022).

The spelling of 20012122202020 in words is "twenty trillion, twelve billion, one hundred twenty-two million, two hundred two thousand, twenty".