12250421473 has 2 divisors, whose sum is σ = 12250421474. Its totient is φ = 12250421472.

The previous prime is 12250421413. The next prime is 12250421479. The reversal of 12250421473 is 37412405221.

It is a happy number.

12250421473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9740110864 + 2510310609 = 98692^2 + 50103^2 .

It is a cyclic number.

It is not a de Polignac number, because 12250421473 - 2²¹ = 12248324321 is a prime.

It is a super-2 number, since 2×12250421473² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12250421479) 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 as a sum of consecutive naturals, namely, 6125210736 + 6125210737.

It is an arithmetic number, because the mean of its divisors is an integer number (6125210737).

Almost surely, 2^12250421473 is an apocalyptic number.

It is an amenable number.

12250421473 is a deficient number, since it is larger than the sum of its proper divisors (1).

12250421473 is an equidigital number, since it uses as much as digits as its factorization.

12250421473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 31.

Adding to 12250421473 its reverse (37412405221), we get a palindrome (49662826694).

The spelling of 12250421473 in words is "twelve billion, two hundred fifty million, four hundred twenty-one thousand, four hundred seventy-three".