2121110212112 has 20 divisors (see below), whose sum is σ = 4122066910416. Its totient is φ = 1057351009440.

The previous prime is 2121110212063. The next prime is 2121110212213. The reversal of 2121110212112 is 2112120111212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200250578 + ... + 200261169.

Almost surely, 2^{2121110212112} is an apocalyptic number.

It is an amenable number.

2121110212112 is a deficient number, since it is larger than the sum of its proper divisors (2000956698304).

2121110212112 is a wasteful number, since it uses less digits than its factorization.

2121110212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400512086 (or 400512080 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2121110212112 its reverse (2112120111212), we get a palindrome (4233230323324).

The spelling of 2121110212112 in words is "two trillion, one hundred twenty-one billion, one hundred ten million, two hundred twelve thousand, one hundred twelve".