2112122120112 has 30 divisors (see below), whose sum is σ = 5911008433772. Its totient is φ = 704040706656.

The previous prime is 2112122120107. The next prime is 2112122120137. The reversal of 2112122120112 is 2110212212112.

2112122120112 is a `hidden beast` number, since 211 + 21 + 221 + 201 + 12 = 666.

It is a super-2 number, since 2×2112122120112² (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 an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7333757218 + ... + 7333757505.

Almost surely, 2^{2112122120112} is an apocalyptic number.

It is an amenable number.

2112122120112 is an abundant number, since it is smaller than the sum of its proper divisors (3798886313660).

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

2112122120112 is a wasteful number, since it uses less digits than its factorization.

2112122120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14667514737 (or 14667514728 counting only the distinct ones).

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

Adding to 2112122120112 its reverse (2110212212112), we get a palindrome (4222334332224).

The spelling of 2112122120112 in words is "two trillion, one hundred twelve billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twelve".