2124540012 has 24 divisors (see below), whose sum is σ = 5665440256. Its totient is φ = 607011408.

The previous prime is 2124539987. The next prime is 2124540049. The reversal of 2124540012 is 2100454212.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 12645988 + ... + 12646155.

Almost surely, 2^2124540012 is an apocalyptic number.

It is an amenable number.

2124540012 is an abundant number, since it is smaller than the sum of its proper divisors (3540900244).

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

2124540012 is a wasteful number, since it uses less digits than its factorization.

2124540012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25292157 (or 25292155 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2124540012 is about 46092.7327460631. The cubic root of 2124540012 is about 1285.5480232484.

Adding to 2124540012 its reverse (2100454212), we get a palindrome (4224994224).

The spelling of 2124540012 in words is "two billion, one hundred twenty-four million, five hundred forty thousand, twelve".