2124544220 has 48 divisors (see below), whose sum is σ = 4555631808. Its totient is φ = 831966720.

The previous prime is 2124544207. The next prime is 2124544237. The reversal of 2124544220 is 224454212.

It is a self number, because there is not a number n which added to its sum of digits gives 2124544220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 550337 + ... + 554183.

It is an arithmetic number, because the mean of its divisors is an integer number (94908996).

Almost surely, 2^2124544220 is an apocalyptic number.

2124544220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124544220 is an abundant number, since it is smaller than the sum of its proper divisors (2431087588).

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

2124544220 is a wasteful number, since it uses less digits than its factorization.

2124544220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430 (or 4428 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 2124544220 is about 46092.7783931496. The cubic root of 2124544220 is about 1285.5488719941.

Adding to 2124544220 its reverse (224454212), we get a palindrome (2348998432).

The spelling of 2124544220 in words is "two billion, one hundred twenty-four million, five hundred forty-four thousand, two hundred twenty".