20002120011012 has 48 divisors (see below), whose sum is σ = 46826288107200. Its totient is φ = 6645294045312.

The previous prime is 20002120011011. The next prime is 20002120011019. The reversal of 20002120011012 is 21011002120002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (20002120011011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8301043 + ... + 10436069.

It is an arithmetic number, because the mean of its divisors is an integer number (975547668900).

Almost surely, 2^{20002120011012} is an apocalyptic number.

It is an amenable number.

20002120011012 is an abundant number, since it is smaller than the sum of its proper divisors (26824168096188).

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

20002120011012 is a wasteful number, since it uses less digits than its factorization.

20002120011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137620 (or 2137618 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20002120011012 its reverse (21011002120002), we get a palindrome (41013122131014).

The spelling of 20002120011012 in words is "twenty trillion, two billion, one hundred twenty million, eleven thousand, twelve".