122512005525 has 96 divisors (see below), whose sum is σ = 250971436800. Its totient is φ = 51349985280.

The previous prime is 122512005521. The next prime is 122512005533. The reversal of 122512005525 is 525500215221.

It is not a de Polignac number, because 122512005525 - 2² = 122512005521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122512005492 and 122512005501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122512005521) 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 95 ways as a sum of consecutive naturals, for example, 956689 + ... + 1077161.

It is an arithmetic number, because the mean of its divisors is an integer number (2614285800).

Almost surely, 2^122512005525 is an apocalyptic number.

122512005525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122512005525 is an abundant number, since it is smaller than the sum of its proper divisors (128459431275).

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

122512005525 is a wasteful number, since it uses less digits than its factorization.

122512005525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120655 (or 120650 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The spelling of 122512005525 in words is "one hundred twenty-two billion, five hundred twelve million, five thousand, five hundred twenty-five".