2112121201112 has 32 divisors (see below), whose sum is σ = 4265003393280. Its totient is φ = 974792421120.

The previous prime is 2112121201109. The next prime is 2112121201123. The reversal of 2112121201112 is 2111021212112.

It is a super-2 number, since 2×2112121201112² (a number of 25 digits) contains 22 as substring.

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, 2918537 + ... + 3569607.

It is an arithmetic number, because the mean of its divisors is an integer number (133281356040).

Almost surely, 2^{2112121201112} is an apocalyptic number.

It is an amenable number.

2112121201112 is an abundant number, since it is smaller than the sum of its proper divisors (2152882192168).

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

2112121201112 is a wasteful number, since it uses less digits than its factorization.

2112121201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682283 (or 682279 counting only the distinct ones).

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

Adding to 2112121201112 its reverse (2111021212112), we get a palindrome (4223142413224).

The spelling of 2112121201112 in words is "two trillion, one hundred twelve billion, one hundred twenty-one million, two hundred one thousand, one hundred twelve".