12105124050621 has 16 divisors (see below), whose sum is σ = 18446143361024. Its totient is φ = 6917123726064.

The previous prime is 12105124050601. The next prime is 12105124050697. The reversal of 12105124050621 is 12605042150121.

It is not a de Polignac number, because 12105124050621 - 2¹¹ = 12105124048573 is a prime.

It is a super-3 number, since 3×12105124050621³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12105124050601) 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, 2081305 + ... + 5342478.

It is an arithmetic number, because the mean of its divisors is an integer number (1152883960064).

Almost surely, 2^{12105124050621} is an apocalyptic number.

It is an amenable number.

12105124050621 is a deficient number, since it is larger than the sum of its proper divisors (6341019310403).

12105124050621 is an equidigital number, since it uses as much as digits as its factorization.

12105124050621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7501440.

The product of its (nonzero) digits is 4800, while the sum is 30.

The spelling of 12105124050621 in words is "twelve trillion, one hundred five billion, one hundred twenty-four million, fifty thousand, six hundred twenty-one".