201044434221 has 6 divisors (see below), whose sum is σ = 290397516110. Its totient is φ = 134029622808.

The previous prime is 201044434177. The next prime is 201044434229. The reversal of 201044434221 is 122434440102.

201044434221 is a `hidden beast` number, since 2 + 0 + 1 + 0 + 4 + 4 + 434 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 175677501321 + 25366932900 = 419139^2 + 159270^2 .

It is not a de Polignac number, because 201044434221 - 2⁷ = 201044434093 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 (201044434229) 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 5 ways as a sum of consecutive naturals, for example, 11169135226 + ... + 11169135243.

Almost surely, 2^201044434221 is an apocalyptic number.

It is an amenable number.

201044434221 is a deficient number, since it is larger than the sum of its proper divisors (89353081889).

201044434221 is a wasteful number, since it uses less digits than its factorization.

201044434221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22338270475 (or 22338270472 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 201044434221 its reverse (122434440102), we get a palindrome (323478874323).

The spelling of 201044434221 in words is "two hundred one billion, forty-four million, four hundred thirty-four thousand, two hundred twenty-one".