12055344355021 has 16 divisors (see below), whose sum is σ = 13843605335040. Its totient is φ = 10382482447920.

The previous prime is 12055344354979. The next prime is 12055344355031.

12055344355021 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12055344355021 - 2⁹ = 12055344354509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12055344355031) 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, 23856646 + ... + 24356728.

It is an arithmetic number, because the mean of its divisors is an integer number (865225333440).

Almost surely, 2^{12055344355021} is an apocalyptic number.

12055344355021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12055344355021 is a deficient number, since it is larger than the sum of its proper divisors (1788260980019).

12055344355021 is a wasteful number, since it uses less digits than its factorization.

12055344355021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615456.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 12055344355021 in words is "twelve trillion, fifty-five billion, three hundred forty-four million, three hundred fifty-five thousand, twenty-one".