1001122120201 has 4 divisors (see below), whose sum is σ = 1144139565952. Its totient is φ = 858104674452.

The previous prime is 1001122120183. The next prime is 1001122120223. The reversal of 1001122120201 is 1020212211001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1001122120201 - 2¹⁹ = 1001121595913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001122120241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71508722865 + ... + 71508722878.

It is an arithmetic number, because the mean of its divisors is an integer number (286034891488).

Almost surely, 2^{1001122120201} is an apocalyptic number.

It is an amenable number.

1001122120201 is a deficient number, since it is larger than the sum of its proper divisors (143017445751).

1001122120201 is an equidigital number, since it uses as much as digits as its factorization.

1001122120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143017445750.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1001122120201 its reverse (1020212211001), we get a palindrome (2021334331202).

The spelling of 1001122120201 in words is "one trillion, one billion, one hundred twenty-two million, one hundred twenty thousand, two hundred one".