1212112210247 has 2 divisors, whose sum is σ = 1212112210248. Its totient is φ = 1212112210246.

The previous prime is 1212112210201. The next prime is 1212112210289. The reversal of 1212112210247 is 7420122112121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212112210247 - 2²⁰ = 1212111161671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212112212247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606056105123 + 606056105124.

It is an arithmetic number, because the mean of its divisors is an integer number (606056105124).

Almost surely, 2^{1212112210247} is an apocalyptic number.

1212112210247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212112210247 is an equidigital number, since it uses as much as digits as its factorization.

1212112210247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 1212112210247 its reverse (7420122112121), we get a palindrome (8632234322368).

The spelling of 1212112210247 in words is "one trillion, two hundred twelve billion, one hundred twelve million, two hundred ten thousand, two hundred forty-seven".