122505052512 has 48 divisors (see below), whose sum is σ = 324759706992. Its totient is φ = 40430707200.

The previous prime is 122505052477. The next prime is 122505052519. The reversal of 122505052512 is 215250505221.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 122505052512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122505052519) 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, 6307603 + ... + 6326994.

It is an arithmetic number, because the mean of its divisors is an integer number (6765827229).

Almost surely, 2^122505052512 is an apocalyptic number.

122505052512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122505052512 is an abundant number, since it is smaller than the sum of its proper divisors (202254654480).

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

122505052512 is a wasteful number, since it uses less digits than its factorization.

122505052512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12634711 (or 12634703 counting only the distinct ones).

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

Adding to 122505052512 its reverse (215250505221), we get a palindrome (337755557733).

The spelling of 122505052512 in words is "one hundred twenty-two billion, five hundred five million, fifty-two thousand, five hundred twelve".