12225182251 has 2 divisors, whose sum is σ = 12225182252. Its totient is φ = 12225182250.

The previous prime is 12225182243. The next prime is 12225182287. The reversal of 12225182251 is 15228152221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12225182251 - 2³ = 12225182243 is a prime.

It is not a weakly prime, because it can be changed into another prime (12225482251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6112591125 + 6112591126.

It is an arithmetic number, because the mean of its divisors is an integer number (6112591126).

Almost surely, 2^12225182251 is an apocalyptic number.

12225182251 is a deficient number, since it is larger than the sum of its proper divisors (1).

12225182251 is an equidigital number, since it uses as much as digits as its factorization.

12225182251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6400, while the sum is 31.

The spelling of 12225182251 in words is "twelve billion, two hundred twenty-five million, one hundred eighty-two thousand, two hundred fifty-one".