2125210000 has 75 divisors (see below), whose sum is σ = 5156531413. Its totient is φ = 848240000.

The previous prime is 2125209979. The next prime is 2125210007. The reversal of 2125210000 is 125212.

The square root of 2125210000 is 46100.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 1917388944 + 207821056 = 43788^2 + 14416^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2125210007) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 4609770 + ... + 4610230.

Almost surely, 2^2125210000 is an apocalyptic number.

2125210000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

2125210000 is the 46100-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2125210000

2125210000 is an abundant number, since it is smaller than the sum of its proper divisors (3031321413).

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

2125210000 is an frugal number, since it uses more digits than its factorization.

2125210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The cubic root of 2125210000 is about 1285.6831444544.

Adding to 2125210000 its reverse (125212), we get a palindrome (2125335212).

The spelling of 2125210000 in words is "two billion, one hundred twenty-five million, two hundred ten thousand".