2124245500 has 144 divisors (see below), whose sum is σ = 5246894016. Its totient is φ = 749548800.

The previous prime is 2124245471. The next prime is 2124245533. The reversal of 2124245500 is 55424212.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1942954 + ... + 1944046.

It is an arithmetic number, because the mean of its divisors is an integer number (36436764).

Almost surely, 2^2124245500 is an apocalyptic number.

2124245500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2124245500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2623447008).

2124245500 is an abundant number, since it is smaller than the sum of its proper divisors (3122648516).

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

2124245500 is a wasteful number, since it uses less digits than its factorization.

2124245500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161 (or 1136 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2124245500 is about 46089.5378583904. The cubic root of 2124245500 is about 1285.4886179476.

Adding to 2124245500 its reverse (55424212), we get a palindrome (2179669712).

The spelling of 2124245500 in words is "two billion, one hundred twenty-four million, two hundred forty-five thousand, five hundred".