2112120121112 has 64 divisors (see below), whose sum is σ = 4112509294080. Its totient is φ = 1016212684032.

The previous prime is 2112120121093. The next prime is 2112120121117. The reversal of 2112120121112 is 2111210212112.

It is a super-2 number, since 2×2112120121112² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112120121117) 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, 22226933 + ... + 22321755.

It is an arithmetic number, because the mean of its divisors is an integer number (64257957720).

Almost surely, 2^{2112120121112} is an apocalyptic number.

It is an amenable number.

2112120121112 is a deficient number, since it is larger than the sum of its proper divisors (2000389172968).

2112120121112 is a wasteful number, since it uses less digits than its factorization.

2112120121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95832 (or 95828 counting only the distinct ones).

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

Adding to 2112120121112 its reverse (2111210212112), we get a palindrome (4223330333224).

The spelling of 2112120121112 in words is "two trillion, one hundred twelve billion, one hundred twenty million, one hundred twenty-one thousand, one hundred twelve".