212247247704253 has 2 divisors, whose sum is σ = 212247247704254. Its totient is φ = 212247247704252.

The previous prime is 212247247704229. The next prime is 212247247704313. The reversal of 212247247704253 is 352407742742212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204332101292484 + 7915146411769 = 14294478^2 + 2813387^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212247247704253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212247247704253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212247247704053) 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, 106123623852126 + 106123623852127.

It is an arithmetic number, because the mean of its divisors is an integer number (106123623852127).

Almost surely, 2^{212247247704253} is an apocalyptic number.

It is an amenable number.

212247247704253 is a deficient number, since it is larger than the sum of its proper divisors (1).

212247247704253 is an equidigital number, since it uses as much as digits as its factorization.

212247247704253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10536960, while the sum is 52.

The spelling of 212247247704253 in words is "two hundred twelve trillion, two hundred forty-seven billion, two hundred forty-seven million, seven hundred four thousand, two hundred fifty-three".