2112194294656 has 192 divisors, whose sum is σ = 4483837033200. Its totient is φ = 989786234880.

The previous prime is 2112194294633. The next prime is 2112194294677. The reversal of 2112194294656 is 6564924912112.

It is a super-2 number, since 2×2112194294656² (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 in 23 ways as a sum of consecutive naturals, for example, 1337677675 + ... + 1337679253.

Almost surely, 2^{2112194294656} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112194294656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2241918516600).

2112194294656 is an abundant number, since it is smaller than the sum of its proper divisors (2371642738544).

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

2112194294656 is an equidigital number, since it uses as much as digits as its factorization.

2112194294656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837 (or 1742 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 52.

The spelling of 2112194294656 in words is "two trillion, one hundred twelve billion, one hundred ninety-four million, two hundred ninety-four thousand, six hundred fifty-six".