1226280710917 has 2 divisors, whose sum is σ = 1226280710918. Its totient is φ = 1226280710916.

The previous prime is 1226280710899. The next prime is 1226280710981. The reversal of 1226280710917 is 7190170826221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1000892198916 + 225388512001 = 1000446^2 + 474751^2 .

It is an emirp because it is prime and its reverse (7190170826221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1226280710917 - 2¹⁵ = 1226280678149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226280711917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613140355458 + 613140355459.

It is an arithmetic number, because the mean of its divisors is an integer number (613140355459).

Almost surely, 2^{1226280710917} is an apocalyptic number.

It is an amenable number.

1226280710917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226280710917 is an equidigital number, since it uses as much as digits as its factorization.

1226280710917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 46.

The spelling of 1226280710917 in words is "one trillion, two hundred twenty-six billion, two hundred eighty million, seven hundred ten thousand, nine hundred seventeen".