2112111201012 has 24 divisors (see below), whose sum is σ = 4951616154912. Its totient is φ = 700700397600.

The previous prime is 2112111200993. The next prime is 2112111201043. The reversal of 2112111201012 is 2101021112112.

It is a happy number.

It is a super-2 number, since 2×2112111201012² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112111200982 and 2112111201000.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 417081039 + ... + 417086102.

It is an arithmetic number, because the mean of its divisors is an integer number (206317339788).

Almost surely, 2^{2112111201012} is an apocalyptic number.

It is an amenable number.

2112111201012 is an abundant number, since it is smaller than the sum of its proper divisors (2839504953900).

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

2112111201012 is a wasteful number, since it uses less digits than its factorization.

2112111201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834167359 (or 834167357 counting only the distinct ones).

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

Adding to 2112111201012 its reverse (2101021112112), we get a palindrome (4213132313124).

The spelling of 2112111201012 in words is "two trillion, one hundred twelve billion, one hundred eleven million, two hundred one thousand, twelve".