200002102020 has 192 divisors, whose sum is σ = 712708416000. Its totient is φ = 45612564480.

The previous prime is 200002101989. The next prime is 200002102033. The reversal of 200002102020 is 20201200002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 200002101993 and 200002102011.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1638300 + ... + 1756140.

It is an arithmetic number, because the mean of its divisors is an integer number (3712023000).

Almost surely, 2^200002102020 is an apocalyptic number.

200002102020 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 200002102020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356354208000).

200002102020 is an abundant number, since it is smaller than the sum of its proper divisors (512706313980).

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

200002102020 is a wasteful number, since it uses less digits than its factorization.

200002102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118315 (or 118307 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 200002102020 its reverse (20201200002), we get a palindrome (220203302022).

The spelling of 200002102020 in words is "two hundred billion, two million, one hundred two thousand, twenty".