2101112256 has 56 divisors (see below), whose sum is σ = 5588095504. Its totient is φ = 696729600.

The previous prime is 2101112239. The next prime is 2101112287. The reversal of 2101112256 is 6522111012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8706 + ... + 65406.

Almost surely, 2^2101112256 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 2101112256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2794047752).

2101112256 is an abundant number, since it is smaller than the sum of its proper divisors (3486983248).

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

2101112256 is a wasteful number, since it uses less digits than its factorization.

2101112256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56909 (or 56899 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 2101112256 is about 45837.8910509635. The cubic root of 2101112256 is about 1280.8052095065.

Adding to 2101112256 its reverse (6522111012), we get a palindrome (8623223268).

The spelling of 2101112256 in words is "two billion, one hundred one million, one hundred twelve thousand, two hundred fifty-six".