12485698221 has 4 divisors (see below), whose sum is σ = 16647597632. Its totient is φ = 8323798812.

The previous prime is 12485698219. The next prime is 12485698237. The reversal of 12485698221 is 12289658421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12485698221 - 2¹ = 12485698219 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 (12485698261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2080949701 + ... + 2080949706.

It is an arithmetic number, because the mean of its divisors is an integer number (4161899408).

Almost surely, 2^12485698221 is an apocalyptic number.

It is an amenable number.

12485698221 is a deficient number, since it is larger than the sum of its proper divisors (4161899411).

12485698221 is an equidigital number, since it uses as much as digits as its factorization.

12485698221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4161899410.

The product of its digits is 552960, while the sum is 48.

The spelling of 12485698221 in words is "twelve billion, four hundred eighty-five million, six hundred ninety-eight thousand, two hundred twenty-one".