2112444533412 has 36 divisors (see below), whose sum is σ = 5339841171756. Its totient is φ = 704141475840.

The previous prime is 2112444533411. The next prime is 2112444533453. The reversal of 2112444533412 is 2143354442112.

2112444533412 is a `hidden beast` number, since 2 + 112 + 4 + 4 + 4 + 533 + 4 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1368113872896 + 744330660516 = 1169664^2 + 862746^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2112444533411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4842468 + ... + 5260644.

Almost surely, 2^{2112444533412} is an apocalyptic number.

It is an amenable number.

2112444533412 is an abundant number, since it is smaller than the sum of its proper divisors (3227396638344).

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

2112444533412 is a wasteful number, since it uses less digits than its factorization.

2112444533412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558508 (or 558503 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

Adding to 2112444533412 its reverse (2143354442112), we get a palindrome (4255798975524).

The spelling of 2112444533412 in words is "two trillion, one hundred twelve billion, four hundred forty-four million, five hundred thirty-three thousand, four hundred twelve".