1211224304047 has 2 divisors, whose sum is σ = 1211224304048. Its totient is φ = 1211224304046.

The previous prime is 1211224303999. The next prime is 1211224304083. The reversal of 1211224304047 is 7404034221121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211224304047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211224304747) 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, 605612152023 + 605612152024.

It is an arithmetic number, because the mean of its divisors is an integer number (605612152024).

Almost surely, 2^{1211224304047} is an apocalyptic number.

1211224304047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211224304047 is an equidigital number, since it uses as much as digits as its factorization.

1211224304047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 31.

Adding to 1211224304047 its reverse (7404034221121), we get a palindrome (8615258525168).

The spelling of 1211224304047 in words is "one trillion, two hundred eleven billion, two hundred twenty-four million, three hundred four thousand, forty-seven".