12055251213 has 6 divisors (see below), whose sum is σ = 17413140654. Its totient is φ = 8036834136.

The previous prime is 12055251127. The next prime is 12055251217. The reversal of 12055251213 is 31215255021.

12055251213 is a `hidden beast` number, since 12 + 0 + 5 + 525 + 121 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10646525124 + 1408726089 = 103182^2 + 37533^2 .

It is not a de Polignac number, because 12055251213 - 2¹⁰ = 12055250189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12055251217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 669736170 + ... + 669736187.

It is an arithmetic number, because the mean of its divisors is an integer number (2902190109).

Almost surely, 2^12055251213 is an apocalyptic number.

It is an amenable number.

12055251213 is a deficient number, since it is larger than the sum of its proper divisors (5357889441).

12055251213 is a wasteful number, since it uses less digits than its factorization.

12055251213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339472363 (or 1339472360 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The spelling of 12055251213 in words is "twelve billion, fifty-five million, two hundred fifty-one thousand, two hundred thirteen".