122124540 has 96 divisors (see below), whose sum is σ = 350542080. Its totient is φ = 31760896.

The previous prime is 122124511. The next prime is 122124551. The reversal of 122124540 is 45421221.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 682171 + ... + 682349.

It is an arithmetic number, because the mean of its divisors is an integer number (3651480).

Almost surely, 2^122124540 is an apocalyptic number.

122124540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122124540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175271040).

122124540 is an abundant number, since it is smaller than the sum of its proper divisors (228417540).

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

122124540 is a wasteful number, since it uses less digits than its factorization.

122124540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 122124540 is about 11050.9972400684. The cubic root of 122124540 is about 496.1362734736.

Adding to 122124540 its reverse (45421221), we get a palindrome (167545761).

The spelling of 122124540 in words is "one hundred twenty-two million, one hundred twenty-four thousand, five hundred forty".