2124211156 has 12 divisors (see below), whose sum is σ = 3718399860. Its totient is φ = 1061811200.

The previous prime is 2124211151. The next prime is 2124211163. The reversal of 2124211156 is 6511124212.

It can be written as a sum of positive squares in 2 ways, for example, as 824608656 + 1299602500 = 28716^2 + 36050^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2124211156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124211151) 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 3 ways as a sum of consecutive naturals, for example, 56941 + ... + 86548.

It is an arithmetic number, because the mean of its divisors is an integer number (309866655).

Almost surely, 2^2124211156 is an apocalyptic number.

It is an amenable number.

2124211156 is a deficient number, since it is larger than the sum of its proper divisors (1594188704).

2124211156 is a wasteful number, since it uses less digits than its factorization.

2124211156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147194 (or 147192 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

The square root of 2124211156 is about 46089.1652777526. The cubic root of 2124211156 is about 1285.4816901453.

Adding to 2124211156 its reverse (6511124212), we get a palindrome (8635335368).

The spelling of 2124211156 in words is "two billion, one hundred twenty-four million, two hundred eleven thousand, one hundred fifty-six".