12421111012 has 12 divisors (see below), whose sum is σ = 21815418940. Its totient is φ = 6188134176.

The previous prime is 12421110983. The next prime is 12421111019. The reversal of 12421111012 is 21011112421.

12421111012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5042988196 + 7378122816 = 71014^2 + 85896^2 .

It is not an unprimeable number, because it can be changed into a prime (12421111019) 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 3 ways as a sum of consecutive naturals, for example, 5604087 + ... + 5606302.

Almost surely, 2^12421111012 is an apocalyptic number.

It is an amenable number.

12421111012 is a deficient number, since it is larger than the sum of its proper divisors (9394307928).

12421111012 is a wasteful number, since it uses less digits than its factorization.

12421111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11210670 (or 11210668 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12421111012 its reverse (21011112421), we get a palindrome (33432223433).

The spelling of 12421111012 in words is "twelve billion, four hundred twenty-one million, one hundred eleven thousand, twelve".