201122002221109 has 4 divisors (see below), whose sum is σ = 201125742479116. Its totient is φ = 201118261963104.

The previous prime is 201122002221067. The next prime is 201122002221181. The reversal of 201122002221109 is 901122200221102.

It is a happy number.

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 109049878863025 + 92072123358084 = 10442695^2 + 9595422^2 .

It is a cyclic number.

It is not a de Polignac number, because 201122002221109 - 2²⁵ = 201121968666677 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 (201122002221199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1870048344 + ... + 1870155889.

It is an arithmetic number, because the mean of its divisors is an integer number (50281435619779).

Almost surely, 2^{201122002221109} is an apocalyptic number.

It is an amenable number.

201122002221109 is a deficient number, since it is larger than the sum of its proper divisors (3740258007).

201122002221109 is an equidigital number, since it uses as much as digits as its factorization.

201122002221109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740258006.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 201122002221109 in words is "two hundred one trillion, one hundred twenty-two billion, two million, two hundred twenty-one thousand, one hundred nine".