2112111120012 has 48 divisors (see below), whose sum is σ = 4988274170880. Its totient is φ = 695496912768.

The previous prime is 2112111120001. The next prime is 2112111120017. The reversal of 2112111120012 is 2100211112112.

It is a happy number.

It is a super-2 number, since 2×2112111120012² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112111119973 and 2112111120000.

It is not an unprimeable number, because it can be changed into a prime (2112111120017) 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, 1583508 + ... + 2594555.

It is an arithmetic number, because the mean of its divisors is an integer number (103922378560).

Almost surely, 2^{2112111120012} is an apocalyptic number.

It is an amenable number.

2112111120012 is an abundant number, since it is smaller than the sum of its proper divisors (2876163050868).

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

2112111120012 is a wasteful number, since it uses less digits than its factorization.

2112111120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4178582 (or 4178580 counting only the distinct ones).

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

Adding to 2112111120012 its reverse (2100211112112), we get a palindrome (4212322232124).

The spelling of 2112111120012 in words is "two trillion, one hundred twelve billion, one hundred eleven million, one hundred twenty thousand, twelve".