122544352540 has 24 divisors (see below), whose sum is σ = 257470183152. Its totient is φ = 48993542400.

The previous prime is 122544352537. The next prime is 122544352543. The reversal of 122544352540 is 45253445221.

It is an interprime number because it is at equal distance from previous prime (122544352537) and next prime (122544352543).

It is a self number, because there is not a number n which added to its sum of digits gives 122544352540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122544352543) 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, 1470861 + ... + 1551940.

It is an arithmetic number, because the mean of its divisors is an integer number (10727924298).

Almost surely, 2^122544352540 is an apocalyptic number.

122544352540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122544352540 is an abundant number, since it is smaller than the sum of its proper divisors (134925830612).

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

122544352540 is a wasteful number, since it uses less digits than its factorization.

122544352540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3024837 (or 3024835 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 122544352540 its reverse (45253445221), we get a palindrome (167797797761).

The spelling of 122544352540 in words is "one hundred twenty-two billion, five hundred forty-four million, three hundred fifty-two thousand, five hundred forty".