12115455210321 has 16 divisors (see below), whose sum is σ = 16224748320000. Its totient is φ = 8041567281408.

The previous prime is 12115455210311. The next prime is 12115455210343. The reversal of 12115455210321 is 12301255451121.

12115455210321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12115455210321 - 2¹¹ = 12115455208273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12115455210311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59507305 + ... + 59710553.

It is an arithmetic number, because the mean of its divisors is an integer number (1014046770000).

Almost surely, 2^{12115455210321} is an apocalyptic number.

It is an amenable number.

12115455210321 is a deficient number, since it is larger than the sum of its proper divisors (4109293109679).

12115455210321 is a wasteful number, since it uses less digits than its factorization.

12115455210321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290248.

The product of its (nonzero) digits is 12000, while the sum is 33.

The spelling of 12115455210321 in words is "twelve trillion, one hundred fifteen billion, four hundred fifty-five million, two hundred ten thousand, three hundred twenty-one".