2122504540 has 24 divisors (see below), whose sum is σ = 4800126240. Its totient is φ = 783693888.

The previous prime is 2122504511. The next prime is 2122504541. The reversal of 2122504540 is 454052212.

It is a super-2 number, since 2×2122504540² = 9010051044641223200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122504541) 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 7 ways as a sum of consecutive naturals, for example, 4081480 + ... + 4081999.

It is an arithmetic number, because the mean of its divisors is an integer number (200005260).

Almost surely, 2^2122504540 is an apocalyptic number.

2122504540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122504540 is an abundant number, since it is smaller than the sum of its proper divisors (2677621700).

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

2122504540 is a wasteful number, since it uses less digits than its factorization.

2122504540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8163501 (or 8163499 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2122504540 is about 46070.6472713375. The cubic root of 2122504540 is about 1285.1373409201.

Adding to 2122504540 its reverse (454052212), we get a palindrome (2576556752).

The spelling of 2122504540 in words is "two billion, one hundred twenty-two million, five hundred four thousand, five hundred forty".