201201122222209 has 8 divisors (see below), whose sum is σ = 202164317873000. Its totient is φ = 200238662120832.

The previous prime is 201201122222207. The next prime is 201201122222351. The reversal of 201201122222209 is 902222221102102.

201201122222209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 34075565655184 + 167125556567025 = 5837428^2 + 12927705^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201201122222209 - 2¹ = 201201122222207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201201122222207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183338964 + ... + 184433125.

It is an arithmetic number, because the mean of its divisors is an integer number (25270539734125).

Almost surely, 2^{201201122222209} is an apocalyptic number.

It is an amenable number.

201201122222209 is a deficient number, since it is larger than the sum of its proper divisors (963195650791).

201201122222209 is a wasteful number, since it uses less digits than its factorization.

201201122222209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367774707.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 201201122222209 in words is "two hundred one trillion, two hundred one billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred nine".