12282126361 has 4 divisors (see below), whose sum is σ = 12282532900. Its totient is φ = 12281719824.

The previous prime is 12282126301. The next prime is 12282126377. The reversal of 12282126361 is 16362128221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16362128221 = 15271 ⋅1071451.

It can be written as a sum of positive squares in 2 ways, for example, as 4286189961 + 7995936400 = 65469^2 + 89420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12282126361 is a prime.

It is a super-2 number, since 2×12282126361² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12282126301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153966 + ... + 219703.

It is an arithmetic number, because the mean of its divisors is an integer number (3070633225).

Almost surely, 2^12282126361 is an apocalyptic number.

It is an amenable number.

12282126361 is a deficient number, since it is larger than the sum of its proper divisors (406539).

12282126361 is an equidigital number, since it uses as much as digits as its factorization.

12282126361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406538.

The product of its digits is 13824, while the sum is 34.

The spelling of 12282126361 in words is "twelve billion, two hundred eighty-two million, one hundred twenty-six thousand, three hundred sixty-one".