201101022122101 has 4 divisors (see below), whose sum is σ = 201135357286252. Its totient is φ = 201066686957952.

The previous prime is 201101022122083. The next prime is 201101022122171. The reversal of 201101022122101 is 101221220101102.

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 166040104779025 + 35060917343076 = 12885655^2 + 5921226^2 .

It is a cyclic number.

It is not a de Polignac number, because 201101022122101 - 2⁷ = 201101022121973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201101022122171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17167573290 + ... + 17167585003.

It is an arithmetic number, because the mean of its divisors is an integer number (50283839321563).

Almost surely, 2^{201101022122101} is an apocalyptic number.

It is an amenable number.

201101022122101 is a deficient number, since it is larger than the sum of its proper divisors (34335164151).

201101022122101 is an equidigital number, since it uses as much as digits as its factorization.

201101022122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34335164150.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201101022122101 its reverse (101221220101102), we get a palindrome (302322242223203).

The spelling of 201101022122101 in words is "two hundred one trillion, one hundred one billion, twenty-two million, one hundred twenty-two thousand, one hundred one".