200001012020 has 48 divisors (see below), whose sum is σ = 425627328000. Its totient is φ = 78930408960.

The previous prime is 200001012017. The next prime is 200001012037. The reversal of 200001012020 is 20210100002.

It is a junction number, because it is equal to n+sod(n) for n = 200001011989 and 200001012007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2165180 + ... + 2255660.

It is an arithmetic number, because the mean of its divisors is an integer number (8867236000).

Almost surely, 2^200001012020 is an apocalyptic number.

200001012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200001012020 is an abundant number, since it is smaller than the sum of its proper divisors (225626315980).

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

200001012020 is a wasteful number, since it uses less digits than its factorization.

200001012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91968 (or 91966 counting only the distinct ones).

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

Adding to 200001012020 its reverse (20210100002), we get a palindrome (220211112022).

The spelling of 200001012020 in words is "two hundred billion, one million, twelve thousand, twenty".