202012200020 has 48 divisors (see below), whose sum is σ = 437214550080. Its totient is φ = 78357839616.

The previous prime is 202012200017. The next prime is 202012200029. The reversal of 202012200020 is 20002210202.

It is a junction number, because it is equal to n+sod(n) for n = 202012199974 and 202012200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202012200029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 725417 + ... + 964496.

It is an arithmetic number, because the mean of its divisors is an integer number (9108636460).

Almost surely, 2^202012200020 is an apocalyptic number.

202012200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202012200020 is an abundant number, since it is smaller than the sum of its proper divisors (235202350060).

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

202012200020 is a wasteful number, since it uses less digits than its factorization.

202012200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690104 (or 1690102 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 202012200020 its reverse (20002210202), we get a palindrome (222014410222).

The spelling of 202012200020 in words is "two hundred two billion, twelve million, two hundred thousand, twenty".