2125217130 has 32 divisors (see below), whose sum is σ = 5123006784. Its totient is φ = 564226176.

The previous prime is 2125217123. The next prime is 2125217131. The reversal of 2125217130 is 317125212.

It is a self number, because there is not a number n which added to its sum of digits gives 2125217130.

It is not an unprimeable number, because it can be changed into a prime (2125217131) by changing a digit.

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, 149227 + ... + 162846.

It is an arithmetic number, because the mean of its divisors is an integer number (160093962).

Almost surely, 2^2125217130 is an apocalyptic number.

2125217130 is an abundant number, since it is smaller than the sum of its proper divisors (2997789654).

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

2125217130 is a wasteful number, since it uses less digits than its factorization.

2125217130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312310.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 2125217130 is about 46100.0773318223. The cubic root of 2125217130 is about 1285.6845822591.

The spelling of 2125217130 in words is "two billion, one hundred twenty-five million, two hundred seventeen thousand, one hundred thirty".