2112133534544 has 80 divisors (see below), whose sum is σ = 4610634233856. Its totient is φ = 928618646400.

The previous prime is 2112133534541. The next prime is 2112133534579. The reversal of 2112133534544 is 4454353312112.

It is a super-2 number, since 2×2112133534544² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112133534498 and 2112133534507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112133534541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10743659 + ... + 10938485.

Almost surely, 2^{2112133534544} 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 2112133534544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2305317116928).

2112133534544 is an abundant number, since it is smaller than the sum of its proper divisors (2498500699312).

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

2112133534544 is a wasteful number, since it uses less digits than its factorization.

2112133534544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196864 (or 196858 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

Adding to 2112133534544 its reverse (4454353312112), we get a palindrome (6566486846656).

The spelling of 2112133534544 in words is "two trillion, one hundred twelve billion, one hundred thirty-three million, five hundred thirty-four thousand, five hundred forty-four".