2112121012 has 12 divisors (see below), whose sum is σ = 3696821856. Its totient is φ = 1055886200.

The previous prime is 2112121007. The next prime is 2112121049. The reversal of 2112121012 is 2101212112.

It is a super-2 number, since 2×2112121012² = 8922110338663808288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112120983 and 2112121001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14098 + ... + 66505.

It is an arithmetic number, because the mean of its divisors is an integer number (308068488).

Almost surely, 2^2112121012 is an apocalyptic number.

It is an amenable number.

2112121012 is a deficient number, since it is larger than the sum of its proper divisors (1584700844).

2112121012 is a wasteful number, since it uses less digits than its factorization.

2112121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87158 (or 87156 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2112121012 is about 45957.8177462769. The cubic root of 2112121012 is about 1283.0382359586.

Adding to 2112121012 its reverse (2101212112), we get a palindrome (4213333124).

The spelling of 2112121012 in words is "two billion, one hundred twelve million, one hundred twenty-one thousand, twelve".