2112021212112 has 100 divisors (see below), whose sum is σ = 6986059612576. Its totient is φ = 603434629440.

The previous prime is 2112021212101. The next prime is 2112021212143. The reversal of 2112021212112 is 2112121202112.

It is a super-2 number, since 2×2112021212112² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 19 ways as a sum of consecutive naturals, for example, 116394214 + ... + 116412357.

Almost surely, 2^{2112021212112} is an apocalyptic number.

It is an amenable number.

2112021212112 is an abundant number, since it is smaller than the sum of its proper divisors (4874038400464).

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

2112021212112 is a wasteful number, since it uses less digits than its factorization.

2112021212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232806598 (or 232806583 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2112021212112 its reverse (2112121202112), we get a palindrome (4224142414224).

The spelling of 2112021212112 in words is "two trillion, one hundred twelve billion, twenty-one million, two hundred twelve thousand, one hundred twelve".