121512060512060 has 96 divisors (see below), whose sum is σ = 268976732270400. Its totient is φ = 46039648112640.

The previous prime is 121512060512047. The next prime is 121512060512069. The reversal of 121512060512060 is 60215060215121.

It is a super-2 number, since 2×121512060512060² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121512060512069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 398822180 + ... + 399126740.

It is an arithmetic number, because the mean of its divisors is an integer number (2801840961150).

Almost surely, 2^{121512060512060} is an apocalyptic number.

121512060512060 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 121512060512060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134488366135200).

121512060512060 is an abundant number, since it is smaller than the sum of its proper divisors (147464671758340).

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

121512060512060 is a wasteful number, since it uses less digits than its factorization.

121512060512060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317631 (or 317629 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 121512060512060 in words is "one hundred twenty-one trillion, five hundred twelve billion, sixty million, five hundred twelve thousand, sixty".