12401015205 has 16 divisors (see below), whose sum is σ = 19888989120. Its totient is φ = 6598086528.

The previous prime is 12401015173. The next prime is 12401015213. The reversal of 12401015205 is 50251010421.

12401015205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12401015205 - 2⁵ = 12401015173 is a prime.

It is a super-2 number, since 2×12401015205² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 980272 + ... + 992841.

It is an arithmetic number, because the mean of its divisors is an integer number (1243061820).

Almost surely, 2^12401015205 is an apocalyptic number.

12401015205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12401015205 is a deficient number, since it is larger than the sum of its proper divisors (7487973915).

12401015205 is a wasteful number, since it uses less digits than its factorization.

12401015205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973540.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 12401015205 its reverse (50251010421), we get a palindrome (62652025626).

The spelling of 12401015205 in words is "twelve billion, four hundred one million, fifteen thousand, two hundred five".