2112126120656 has 10 divisors (see below), whose sum is σ = 4092244358802. Its totient is φ = 1056063060320.

The previous prime is 2112126120647. The next prime is 2112126120719. The reversal of 2112126120656 is 6560216212112.

It can be written as a sum of positive squares in only one way, i.e., 2111209000000 + 917120656 = 1453000^2 + 30284^2 .

It is a super-2 number, since 2×2112126120656² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66003941255 + ... + 66003941286.

Almost surely, 2^{2112126120656} is an apocalyptic number.

It is an amenable number.

2112126120656 is a deficient number, since it is larger than the sum of its proper divisors (1980118238146).

2112126120656 is a wasteful number, since it uses less digits than its factorization.

2112126120656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132007882549 (or 132007882543 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 2112126120656 in words is "two trillion, one hundred twelve billion, one hundred twenty-six million, one hundred twenty thousand, six hundred fifty-six".