20001100201012 has 48 divisors (see below), whose sum is σ = 40993759497600. Its totient is φ = 8535110678976.

The previous prime is 20001100200967. The next prime is 20001100201039. The reversal of 20001100201012 is 21010200110002.

It is a self number, because there is not a number n which added to its sum of digits gives 20001100201012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30963718 + ... + 31603069.

It is an arithmetic number, because the mean of its divisors is an integer number (854036656200).

Almost surely, 2^{20001100201012} is an apocalyptic number.

It is an amenable number.

20001100201012 is an abundant number, since it is smaller than the sum of its proper divisors (20992659296588).

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

20001100201012 is a wasteful number, since it uses less digits than its factorization.

20001100201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62567045 (or 62567029 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20001100201012 its reverse (21010200110002), we get a palindrome (41011300311014).

The spelling of 20001100201012 in words is "twenty trillion, one billion, one hundred million, two hundred one thousand, twelve".