2125220000 has 60 divisors (see below), whose sum is σ = 5228409186. Its totient is φ = 850080000.

The previous prime is 2125219991. The next prime is 2125220011. The reversal of 2125220000 is 225212.

It can be written as a sum of positive squares in 5 ways, for example, as 164147344 + 1961072656 = 12812^2 + 44284^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 33131 + ... + 73130.

Almost surely, 2^2125220000 is an apocalyptic number.

2125220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2125220000 is an abundant number, since it is smaller than the sum of its proper divisors (3103189186).

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

2125220000 is an equidigital number, since it uses as much as digits as its factorization.

2125220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106291 (or 106268 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2125220000 is about 46100.1084597423. The cubic root of 2125220000 is about 1285.6851610099.

Adding to 2125220000 its reverse (225212), we get a palindrome (2125445212).

The spelling of 2125220000 in words is "two billion, one hundred twenty-five million, two hundred twenty thousand".