12122080856 has 8 divisors (see below), whose sum is σ = 22728901620. Its totient is φ = 6061040424.

The previous prime is 12122080853. The next prime is 12122080907. The reversal of 12122080856 is 65808022121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122080853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 757630046 + ... + 757630061.

Almost surely, 2^12122080856 is an apocalyptic number.

It is an amenable number.

12122080856 is a deficient number, since it is larger than the sum of its proper divisors (10606820764).

12122080856 is a wasteful number, since it uses less digits than its factorization.

12122080856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515260113 (or 1515260109 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The spelling of 12122080856 in words is "twelve billion, one hundred twenty-two million, eighty thousand, eight hundred fifty-six".