201220222201 has 8 divisors (see below), whose sum is σ = 201613973000. Its totient is φ = 200826552960.

The previous prime is 201220222163. The next prime is 201220222207. The reversal of 201220222201 is 102222022102.

It can be written as a sum of positive squares in 4 ways, for example, as 2273000976 + 198947221225 = 47676^2 + 446035^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201220222201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201220222207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7771525 + ... + 7797373.

It is an arithmetic number, because the mean of its divisors is an integer number (25201746625).

Almost surely, 2^201220222201 is an apocalyptic number.

It is an amenable number.

201220222201 is a deficient number, since it is larger than the sum of its proper divisors (393750799).

201220222201 is a wasteful number, since it uses less digits than its factorization.

201220222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40779.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 201220222201 its reverse (102222022102), we get a palindrome (303442244303).

The spelling of 201220222201 in words is "two hundred one billion, two hundred twenty million, two hundred twenty-two thousand, two hundred one".