12421265435120 has 40 divisors (see below), whose sum is σ = 28881757220064. Its totient is φ = 4968107880192.

The previous prime is 12421265435119. The next prime is 12421265435129. The reversal of 12421265435120 is 2153456212421.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421265435129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5218139 + ... + 7216058.

Almost surely, 2^{12421265435120} is an apocalyptic number.

12421265435120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12421265435120 is an abundant number, since it is smaller than the sum of its proper divisors (16460491784944).

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

12421265435120 is a wasteful number, since it uses less digits than its factorization.

12421265435120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12446697 (or 12446691 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 12421265435120 in words is "twelve trillion, four hundred twenty-one billion, two hundred sixty-five million, four hundred thirty-five thousand, one hundred twenty".