200102110020 has 240 divisors, whose sum is σ = 655597514880. Its totient is φ = 50995574784.

The previous prime is 200102110007. The next prime is 200102110037. The reversal of 200102110020 is 20011201002.

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 = 200102109984 and 200102110011.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 70382719 + ... + 70385561.

It is an arithmetic number, because the mean of its divisors is an integer number (2731656312).

Almost surely, 2^200102110020 is an apocalyptic number.

200102110020 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 200102110020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327798757440).

200102110020 is an abundant number, since it is smaller than the sum of its proper divisors (455495404860).

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

200102110020 is a wasteful number, since it uses less digits than its factorization.

200102110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4776 (or 4765 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 200102110020 its reverse (20011201002), we get a palindrome (220113311022).

The spelling of 200102110020 in words is "two hundred billion, one hundred two million, one hundred ten thousand, twenty".