200020200010020 has 144 divisors (see below), whose sum is σ = 653404246093872. Its totient is φ = 49235370347520.

The previous prime is 200020200009989. The next prime is 200020200010027. The reversal of 200020200010020 is 20010002020002.

200020200010020 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 93528202316004 + 106491997694016 = 9670998^2 + 10319496^2 .

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 = 200020200009984 and 200020200010011.

It is not an unprimeable number, because it can be changed into a prime (200020200010027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 436819990 + ... + 437277650.

It is an arithmetic number, because the mean of its divisors is an integer number (4537529486763).

Almost surely, 2^{200020200010020} is an apocalyptic number.

200020200010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200020200010020 is an abundant number, since it is smaller than the sum of its proper divisors (453384046083852).

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

200020200010020 is a wasteful number, since it uses less digits than its factorization.

200020200010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644462 (or 644457 counting only the distinct ones).

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

Adding to 200020200010020 its reverse (20010002020002), we get a palindrome (220030202030022).

The spelling of 200020200010020 in words is "two hundred trillion, twenty billion, two hundred million, ten thousand, twenty".