2112111111012 has 36 divisors (see below), whose sum is σ = 5732873017200. Its totient is φ = 603460317264.

The previous prime is 2112111110981. The next prime is 2112111111029. The reversal of 2112111111012 is 2101111112112.

It is a super-2 number, since 2×2112111111012² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112111110982 and 2112111111000.

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 11 ways as a sum of consecutive naturals, for example, 1796012262 + ... + 1796013437.

It is an arithmetic number, because the mean of its divisors is an integer number (159246472700).

Almost surely, 2^{2112111111012} is an apocalyptic number.

It is an amenable number.

2112111111012 is an abundant number, since it is smaller than the sum of its proper divisors (3620761906188).

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

2112111111012 is a wasteful number, since it uses less digits than its factorization.

2112111111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3592025720 (or 3592025711 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 2112111111012 its reverse (2101111112112), we get a palindrome (4213222223124).

The spelling of 2112111111012 in words is "two trillion, one hundred twelve billion, one hundred eleven million, one hundred eleven thousand, twelve".