2111020020012 has 48 divisors (see below), whose sum is σ = 5216170411872. Its totient is φ = 662190735360.

The previous prime is 2111020019989. The next prime is 2111020020041. The reversal of 2111020020012 is 2100200201112.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2111020020012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 808312 + ... + 2208032.

It is an arithmetic number, because the mean of its divisors is an integer number (108670216914).

Almost surely, 2^{2111020020012} is an apocalyptic number.

It is an amenable number.

2111020020012 is an abundant number, since it is smaller than the sum of its proper divisors (3105150391860).

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

2111020020012 is a wasteful number, since it uses less digits than its factorization.

2111020020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407138 (or 1407136 counting only the distinct ones).

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

Adding to 2111020020012 its reverse (2100200201112), we get a palindrome (4211220221124).

The spelling of 2111020020012 in words is "two trillion, one hundred eleven billion, twenty million, twenty thousand, twelve".