2125120144 has 80 divisors (see below), whose sum is σ = 4921684992. Its totient is φ = 869134464.

The previous prime is 2125120117. The next prime is 2125120147. The reversal of 2125120144 is 4410215212.

It is a super-2 number, since 2×2125120144² = 9032271252869161472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2125120147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1655727 + ... + 1657009.

Almost surely, 2^2125120144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2125120144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2460842496).

2125120144 is an abundant number, since it is smaller than the sum of its proper divisors (2796564848).

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

2125120144 is a wasteful number, since it uses less digits than its factorization.

2125120144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964 (or 1958 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2125120144 is about 46099.0254126918. The cubic root of 2125120144 is about 1285.6650242102.

Adding to 2125120144 its reverse (4410215212), we get a palindrome (6535335356).

The spelling of 2125120144 in words is "two billion, one hundred twenty-five million, one hundred twenty thousand, one hundred forty-four".