200021120202020 has 96 divisors (see below), whose sum is σ = 454862880920448. Its totient is φ = 73445313779712.

The previous prime is 200021120202019. The next prime is 200021120202031. The reversal of 200021120202020 is 20202021120002.

200021120202020 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×200021120202020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200021120201986 and 200021120202004.

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, 50195612 + ... + 54033708.

It is an arithmetic number, because the mean of its divisors is an integer number (4738155009588).

Almost surely, 2^{200021120202020} is an apocalyptic number.

200021120202020 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 200021120202020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227431440460224).

200021120202020 is an abundant number, since it is smaller than the sum of its proper divisors (254841760718428).

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

200021120202020 is a wasteful number, since it uses less digits than its factorization.

200021120202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3839229 (or 3839227 counting only the distinct ones).

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

Adding to 200021120202020 its reverse (20202021120002), we get a palindrome (220223141322022).

The spelling of 200021120202020 in words is "two hundred trillion, twenty-one billion, one hundred twenty million, two hundred two thousand, twenty".