2127120265 has 16 divisors (see below), whose sum is σ = 2591761536. Its totient is φ = 1675686400.

The previous prime is 2127120253. The next prime is 2127120271. The reversal of 2127120265 is 5620217212.

It is a de Polignac number, because none of the positive numbers 2^k-2127120265 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120825 + ... + 137305.

It is an arithmetic number, because the mean of its divisors is an integer number (161985096).

Almost surely, 2^2127120265 is an apocalyptic number.

It is an amenable number.

2127120265 is a deficient number, since it is larger than the sum of its proper divisors (464641271).

2127120265 is a wasteful number, since it uses less digits than its factorization.

2127120265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16880.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 2127120265 is about 46120.7140556171. The cubic root of 2127120265 is about 1286.0682452232.

Adding to 2127120265 its reverse (5620217212), we get a palindrome (7747337477).

The spelling of 2127120265 in words is "two billion, one hundred twenty-seven million, one hundred twenty thousand, two hundred sixty-five".