12042422215205 has 32 divisors (see below), whose sum is σ = 15675722481888. Its totient is φ = 8845198336000.

The previous prime is 12042422215183. The next prime is 12042422215231. The reversal of 12042422215205 is 50251222424021.

It can be written as a sum of positive squares in 16 ways, for example, as 7413554404 + 12035008660801 = 86102^2 + 3469151^2 .

It is not a de Polignac number, because 12042422215205 - 2²⁴ = 12042405437989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35731259 + ... + 36066711.

It is an arithmetic number, because the mean of its divisors is an integer number (489866327559).

Almost surely, 2^{12042422215205} is an apocalyptic number.

It is an amenable number.

12042422215205 is a deficient number, since it is larger than the sum of its proper divisors (3633300266683).

12042422215205 is a wasteful number, since it uses less digits than its factorization.

12042422215205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345817.

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 12042422215205 its reverse (50251222424021), we get a palindrome (62293644639226).

The spelling of 12042422215205 in words is "twelve trillion, forty-two billion, four hundred twenty-two million, two hundred fifteen thousand, two hundred five".