121712470506 has 96 divisors (see below), whose sum is σ = 306886540800. Its totient is φ = 35692747200.

The previous prime is 121712470493. The next prime is 121712470507. The reversal of 121712470506 is 605074217121.

121712470506 is a `hidden beast` number, since 1 + 21 + 7 + 124 + 7 + 0 + 506 = 666.

It is not an unprimeable number, because it can be changed into a prime (121712470507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 97891 + ... + 502998.

It is an arithmetic number, because the mean of its divisors is an integer number (3196734800).

Almost surely, 2^121712470506 is an apocalyptic number.

121712470506 is an abundant number, since it is smaller than the sum of its proper divisors (185174070294).

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

121712470506 is a wasteful number, since it uses less digits than its factorization.

121712470506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600953 (or 600936 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

Adding to 121712470506 its reverse (605074217121), we get a palindrome (726786687627).

The spelling of 121712470506 in words is "one hundred twenty-one billion, seven hundred twelve million, four hundred seventy thousand, five hundred six".