12120822115 has 8 divisors (see below), whose sum is σ = 14550959808. Its totient is φ = 9692675520.

The previous prime is 12120822079. The next prime is 12120822137. The reversal of 12120822115 is 51122802121.

It is a happy number.

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

It is not a de Polignac number, because 12120822115 - 2¹¹ = 12120820067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12120822115.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484347 + ... + 508756.

It is an arithmetic number, because the mean of its divisors is an integer number (1818869976).

Almost surely, 2^12120822115 is an apocalyptic number.

12120822115 is a deficient number, since it is larger than the sum of its proper divisors (2430137693).

12120822115 is an equidigital number, since it uses as much as digits as its factorization.

12120822115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995549.

The product of its (nonzero) digits is 640, while the sum is 25.

The spelling of 12120822115 in words is "twelve billion, one hundred twenty million, eight hundred twenty-two thousand, one hundred fifteen".