12420442401211 has 12 divisors (see below), whose sum is σ = 13450054856160. Its totient is φ = 11464426977120.

The previous prime is 12420442401203. The next prime is 12420442401259. The reversal of 12420442401211 is 11210424402421.

It is not a de Polignac number, because 12420442401211 - 2³ = 12420442401203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12420442401211.

It is not an unprimeable number, because it can be changed into a prime (12420442401611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1360126 + ... + 5166316.

It is an arithmetic number, because the mean of its divisors is an integer number (1120837904680).

Almost surely, 2^{12420442401211} is an apocalyptic number.

12420442401211 is a deficient number, since it is larger than the sum of its proper divisors (1029612454949).

12420442401211 is a wasteful number, since it uses less digits than its factorization.

12420442401211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3825526 (or 3825513 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

Adding to 12420442401211 its reverse (11210424402421), we get a palindrome (23630866803632).

The spelling of 12420442401211 in words is "twelve trillion, four hundred twenty billion, four hundred forty-two million, four hundred one thousand, two hundred eleven".