2124124400 has 30 divisors (see below), whose sum is σ = 5103209832. Its totient is φ = 849649600.

The previous prime is 2124124369. The next prime is 2124124421. The reversal of 2124124400 is 44214212.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 5 ways as a sum of consecutive naturals, for example, 2654756 + ... + 2655555.

Almost surely, 2^2124124400 is an apocalyptic number.

2124124400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124124400 is an abundant number, since it is smaller than the sum of its proper divisors (2979085432).

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

2124124400 is a wasteful number, since it uses less digits than its factorization.

2124124400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5310329 (or 5310318 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2124124400 is about 46088.2240924946. The cubic root of 2124124400 is about 1285.4641895675.

Adding to 2124124400 its reverse (44214212), we get a palindrome (2168338612).

The spelling of 2124124400 in words is "two billion, one hundred twenty-four million, one hundred twenty-four thousand, four hundred".