12215966077 has 8 divisors (see below), whose sum is σ = 14695899200. Its totient is φ = 9919731744.

The previous prime is 12215966069. The next prime is 12215966083. The reversal of 12215966077 is 77066951221.

12215966077 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 12215966077 - 2³ = 12215966069 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 (12215967077) by changing a digit.

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, 45924552 + ... + 45924817.

It is an arithmetic number, because the mean of its divisors is an integer number (1836987400).

Almost surely, 2^12215966077 is an apocalyptic number.

It is an amenable number.

12215966077 is a deficient number, since it is larger than the sum of its proper divisors (2479933123).

12215966077 is an equidigital number, since it uses as much as digits as its factorization.

12215966077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91849395.

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 12215966077 in words is "twelve billion, two hundred fifteen million, nine hundred sixty-six thousand, seventy-seven".