201122210001 has 4 divisors (see below), whose sum is σ = 268162946672. Its totient is φ = 134081473332.

The previous prime is 201122209969. The next prime is 201122210021. The reversal of 201122210001 is 100012221102.

201122210001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 201122210001 - 2⁵ = 201122209969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201122210021) 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, 33520368331 + ... + 33520368336.

It is an arithmetic number, because the mean of its divisors is an integer number (67040736668).

Almost surely, 2^201122210001 is an apocalyptic number.

It is an amenable number.

201122210001 is a deficient number, since it is larger than the sum of its proper divisors (67040736671).

201122210001 is an equidigital number, since it uses as much as digits as its factorization.

201122210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67040736670.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201122210001 its reverse (100012221102), we get a palindrome (301134431103).

The spelling of 201122210001 in words is "two hundred one billion, one hundred twenty-two million, two hundred ten thousand, one".