2001101010020 has 48 divisors (see below), whose sum is σ = 5011452972288. Its totient is φ = 656261696640.

The previous prime is 2001101010017. The next prime is 2001101010047. The reversal of 2001101010020 is 200101011002.

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, 310726751 + ... + 310733190.

It is an arithmetic number, because the mean of its divisors is an integer number (104405270256).

Almost surely, 2^{2001101010020} is an apocalyptic number.

2001101010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001101010020 is an abundant number, since it is smaller than the sum of its proper divisors (3010351962268).

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

2001101010020 is a wasteful number, since it uses less digits than its factorization.

2001101010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621459980 (or 621459978 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 2001101010020 its reverse (200101011002), we get a palindrome (2201202021022).

The spelling of 2001101010020 in words is "two trillion, one billion, one hundred one million, ten thousand, twenty".