2124122005 has 16 divisors (see below), whose sum is σ = 2710774080. Its totient is φ = 1593257472.

The previous prime is 2124121957. The next prime is 2124122009. The reversal of 2124122005 is 5002214212.

It is a cyclic number.

It is not a de Polignac number, because 2124122005 - 2¹³ = 2124113813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124122009) 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, 106039 + ... + 124468.

It is an arithmetic number, because the mean of its divisors is an integer number (169423380).

Almost surely, 2^2124122005 is an apocalyptic number.

It is an amenable number.

2124122005 is a deficient number, since it is larger than the sum of its proper divisors (586652075).

2124122005 is a wasteful number, since it uses less digits than its factorization.

2124122005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230628.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2124122005 is about 46088.1981097113. The cubic root of 2124122005 is about 1285.4637064370.

Adding to 2124122005 its reverse (5002214212), we get a palindrome (7126336217).

The spelling of 2124122005 in words is "two billion, one hundred twenty-four million, one hundred twenty-two thousand, five".