1211120001701 has 2 divisors, whose sum is σ = 1211120001702. Its totient is φ = 1211120001700.

The previous prime is 1211120001683. The next prime is 1211120001733. The reversal of 1211120001701 is 1071000211121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1191394080100 + 19725921601 = 1091510^2 + 140449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211120001701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1211120001701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211120001001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605560000850 + 605560000851.

It is an arithmetic number, because the mean of its divisors is an integer number (605560000851).

Almost surely, 2^{1211120001701} is an apocalyptic number.

It is an amenable number.

1211120001701 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211120001701 is an equidigital number, since it uses as much as digits as its factorization.

1211120001701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 17.

Adding to 1211120001701 its reverse (1071000211121), we get a palindrome (2282120212822).

The spelling of 1211120001701 in words is "one trillion, two hundred eleven billion, one hundred twenty million, one thousand, seven hundred one".