201044212221 has 8 divisors (see below), whose sum is σ = 269987431840. Its totient is φ = 133065233712.

The previous prime is 201044212181. The next prime is 201044212241. The reversal of 201044212221 is 122212440102.

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

It is not a de Polignac number, because 201044212221 - 2⁷ = 201044212093 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 (201044212241) 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, 241059790 + ... + 241060623.

It is an arithmetic number, because the mean of its divisors is an integer number (33748428980).

Almost surely, 2^201044212221 is an apocalyptic number.

It is an amenable number.

201044212221 is a deficient number, since it is larger than the sum of its proper divisors (68943219619).

201044212221 is a wasteful number, since it uses less digits than its factorization.

201044212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482120555.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 201044212221 its reverse (122212440102), we get a palindrome (323256652323).

The spelling of 201044212221 in words is "two hundred one billion, forty-four million, two hundred twelve thousand, two hundred twenty-one".