12422260521 has 20 divisors (see below), whose sum is σ = 20243685264. Its totient is φ = 7528642200.

The previous prime is 12422260489. The next prime is 12422260531. The reversal of 12422260521 is 12506222421.

12422260521 is a `hidden beast` number, since 12 + 4 + 2 + 22 + 605 + 21 = 666.

12422260521 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 12422260521 - 2⁵ = 12422260489 is a prime.

It is a super-3 number, since 3×12422260521³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12422260531) 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 19 ways as a sum of consecutive naturals, for example, 6970075 + ... + 6971856.

Almost surely, 2^12422260521 is an apocalyptic number.

12422260521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12422260521 is a deficient number, since it is larger than the sum of its proper divisors (7821424743).

12422260521 is a wasteful number, since it uses less digits than its factorization.

12422260521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13941954 (or 13941945 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 12422260521 its reverse (12506222421), we get a palindrome (24928482942).

The spelling of 12422260521 in words is "twelve billion, four hundred twenty-two million, two hundred sixty thousand, five hundred twenty-one".