2112021111012 has 24 divisors (see below), whose sum is σ = 4973260723200. Its totient is φ = 697548256416.

The previous prime is 2112021110977. The next prime is 2112021111019. The reversal of 2112021111012 is 2101111202112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2112021110982 and 2112021111000.

It is not an unprimeable number, because it can be changed into a prime (2112021111019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 807346212 + ... + 807348827.

It is an arithmetic number, because the mean of its divisors is an integer number (207219196800).

Almost surely, 2^{2112021111012} is an apocalyptic number.

It is an amenable number.

2112021111012 is an abundant number, since it is smaller than the sum of its proper divisors (2861239612188).

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

2112021111012 is a wasteful number, since it uses less digits than its factorization.

2112021111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614695155 (or 1614695153 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2112021111012 its reverse (2101111202112), we get a palindrome (4213132313124).

The spelling of 2112021111012 in words is "two trillion, one hundred twelve billion, twenty-one million, one hundred eleven thousand, twelve".