12085244821 has 8 divisors (see below), whose sum is σ = 13580743680. Its totient is φ = 10670583792.

The previous prime is 12085244819. The next prime is 12085244833. The reversal of 12085244821 is 12844258021.

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 12085244821 - 2¹ = 12085244819 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 (12085244851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20209141 + ... + 20209738.

It is an arithmetic number, because the mean of its divisors is an integer number (1697592960).

Almost surely, 2^12085244821 is an apocalyptic number.

It is an amenable number.

12085244821 is a deficient number, since it is larger than the sum of its proper divisors (1495498859).

12085244821 is a wasteful number, since it uses less digits than its factorization.

12085244821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40418915.

The product of its (nonzero) digits is 40960, while the sum is 37.

The spelling of 12085244821 in words is "twelve billion, eighty-five million, two hundred forty-four thousand, eight hundred twenty-one".