1001201101247 has 2 divisors, whose sum is σ = 1001201101248. Its totient is φ = 1001201101246.

The previous prime is 1001201101237. The next prime is 1001201101343. The reversal of 1001201101247 is 7421011021001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1001201101247 - 2¹⁸ = 1001200839103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001201101237) 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, 500600550623 + 500600550624.

It is an arithmetic number, because the mean of its divisors is an integer number (500600550624).

Almost surely, 2^{1001201101247} is an apocalyptic number.

1001201101247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001201101247 is an equidigital number, since it uses as much as digits as its factorization.

1001201101247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 1001201101247 its reverse (7421011021001), we get a palindrome (8422212122248).

The spelling of 1001201101247 in words is "one trillion, one billion, two hundred one million, one hundred one thousand, two hundred forty-seven".