212425612247 has 2 divisors, whose sum is σ = 212425612248. Its totient is φ = 212425612246.

The previous prime is 212425612181. The next prime is 212425612249. The reversal of 212425612247 is 742216524212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212425612247 - 2⁸ = 212425611991 is a prime.

Together with 212425612249, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212425612247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212425612249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106212806123 + 106212806124.

It is an arithmetic number, because the mean of its divisors is an integer number (106212806124).

Almost surely, 2^212425612247 is an apocalyptic number.

212425612247 is a deficient number, since it is larger than the sum of its proper divisors (1).

212425612247 is an equidigital number, since it uses as much as digits as its factorization.

212425612247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 38.

The spelling of 212425612247 in words is "two hundred twelve billion, four hundred twenty-five million, six hundred twelve thousand, two hundred forty-seven".