2012121101112 has 32 divisors (see below), whose sum is σ = 5055837296400. Its totient is φ = 667302427904.

The previous prime is 2012121101101. The next prime is 2012121101167. The reversal of 2012121101112 is 2111011212102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2012121101091 and 2012121101100.

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, 212783037 + ... + 212792492.

Almost surely, 2^{2012121101112} is an apocalyptic number.

It is an amenable number.

2012121101112 is an abundant number, since it is smaller than the sum of its proper divisors (3043716195288).

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

2012121101112 is a wasteful number, since it uses less digits than its factorization.

2012121101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425575735 (or 425575731 counting only the distinct ones).

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

Adding to 2012121101112 its reverse (2111011212102), we get a palindrome (4123132313214).

The spelling of 2012121101112 in words is "two trillion, twelve billion, one hundred twenty-one million, one hundred one thousand, one hundred twelve".