12127212355 has 8 divisors (see below), whose sum is σ = 14574944592. Its totient is φ = 9686910048.

The previous prime is 12127212301. The next prime is 12127212371. The reversal of 12127212355 is 55321272121.

12127212355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12127212355 - 2⁹ = 12127211843 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1853889 + ... + 1860418.

It is an arithmetic number, because the mean of its divisors is an integer number (1821868074).

Almost surely, 2^12127212355 is an apocalyptic number.

12127212355 is a deficient number, since it is larger than the sum of its proper divisors (2447732237).

12127212355 is an equidigital number, since it uses as much as digits as its factorization.

12127212355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3714965.

The product of its digits is 8400, while the sum is 31.

Adding to 12127212355 its reverse (55321272121), we get a palindrome (67448484476).

The spelling of 12127212355 in words is "twelve billion, one hundred twenty-seven million, two hundred twelve thousand, three hundred fifty-five".