1001201022097 has 4 divisors (see below), whose sum is σ = 1001739014836. Its totient is φ = 1000663029360.

The previous prime is 1001201022077. The next prime is 1001201022139. The reversal of 1001201022097 is 7902201021001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 509630365456 + 491570656641 = 713884^2 + 701121^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001201022097 - 2¹¹ = 1001201020049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001201022047) 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 in 3 ways as a sum of consecutive naturals, for example, 268993578 + ... + 268997299.

It is an arithmetic number, because the mean of its divisors is an integer number (250434753709).

Almost surely, 2^{1001201022097} is an apocalyptic number.

It is an amenable number.

1001201022097 is a deficient number, since it is larger than the sum of its proper divisors (537992739).

1001201022097 is an equidigital number, since it uses as much as digits as its factorization.

1001201022097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537992738.

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 1001201022097 its reverse (7902201021001), we get a palindrome (8903402043098).

The spelling of 1001201022097 in words is "one trillion, one billion, two hundred one million, twenty-two thousand, ninety-seven".