202020002112020 has 96 divisors (see below), whose sum is σ = 443829350764800. Its totient is φ = 77140147825664.

The previous prime is 202020002112007. The next prime is 202020002112133. The reversal of 202020002112020 is 20211200020202.

It is a junction number, because it is equal to n+sod(n) for n = 202020002111986 and 202020002112004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 909794729 + ... + 910016751.

It is an arithmetic number, because the mean of its divisors is an integer number (4623222403800).

Almost surely, 2^{202020002112020} is an apocalyptic number.

202020002112020 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 202020002112020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221914675382400).

202020002112020 is an abundant number, since it is smaller than the sum of its proper divisors (241809348652780).

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

202020002112020 is a wasteful number, since it uses less digits than its factorization.

202020002112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239777 (or 239775 counting only the distinct ones).

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

Adding to 202020002112020 its reverse (20211200020202), we get a palindrome (222231202132222).

The spelling of 202020002112020 in words is "two hundred two trillion, twenty billion, two million, one hundred twelve thousand, twenty".