2129124211 has 6 divisors (see below), whose sum is σ = 2247081612. Its totient is φ = 2017064700.

The previous prime is 2129124187. The next prime is 2129124241. The reversal of 2129124211 is 1124219212.

It is not a de Polignac number, because 2129124211 - 2¹⁵ = 2129091443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2129124241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2948565 + ... + 2949286.

It is an arithmetic number, because the mean of its divisors is an integer number (374513602).

Almost surely, 2^2129124211 is an apocalyptic number.

2129124211 is a deficient number, since it is larger than the sum of its proper divisors (117957401).

2129124211 is an equidigital number, since it uses as much as digits as its factorization.

2129124211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5897889 (or 5897870 counting only the distinct ones).

The product of its digits is 576, while the sum is 25.

The square root of 2129124211 is about 46142.4339518409. The cubic root of 2129124211 is about 1286.4719839393.

The spelling of 2129124211 in words is "two billion, one hundred twenty-nine million, one hundred twenty-four thousand, two hundred eleven".