2122124440 has 64 divisors (see below), whose sum is σ = 5244652800. Its totient is φ = 769203072.

The previous prime is 2122124369. The next prime is 2122124441. The reversal of 2122124440 is 444212212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122124441) by changing a digit.

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, 43222 + ... + 78181.

It is an arithmetic number, because the mean of its divisors is an integer number (81947700).

Almost surely, 2^2122124440 is an apocalyptic number.

2122124440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122124440 is an abundant number, since it is smaller than the sum of its proper divisors (3122528360).

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

2122124440 is a wasteful number, since it uses less digits than its factorization.

2122124440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121456 (or 121452 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 2122124440 is about 46066.5219003996. The cubic root of 2122124440 is about 1285.0606218278.

Adding to 2122124440 its reverse (444212212), we get a palindrome (2566336652).

The spelling of 2122124440 in words is "two billion, one hundred twenty-two million, one hundred twenty-four thousand, four hundred forty".