2112111121112 has 8 divisors (see below), whose sum is σ = 3960208352100. Its totient is φ = 1056055560552.

The previous prime is 2112111121111. The next prime is 2112111121121. The reversal of 2112111121112 is 2111211112112.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2112111121112² (a number of 25 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112111121111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132006945062 + ... + 132006945077.

Almost surely, 2^{2112111121112} is an apocalyptic number.

It is an amenable number.

2112111121112 is a deficient number, since it is larger than the sum of its proper divisors (1848097230988).

2112111121112 is a wasteful number, since it uses less digits than its factorization.

2112111121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264013890145 (or 264013890141 counting only the distinct ones).

The product of its digits is 16, while the sum is 17.

Adding to 2112111121112 its reverse (2111211112112), we get a palindrome (4223322233224).

The spelling of 2112111121112 in words is "two trillion, one hundred twelve billion, one hundred eleven million, one hundred twenty-one thousand, one hundred twelve".