201212044221 has 8 divisors (see below), whose sum is σ = 268285023520. Its totient is φ = 134140213872.

The previous prime is 201212044207. The next prime is 201212044259. The reversal of 201212044221 is 122440212102.

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

It is not a de Polignac number, because 201212044221 - 2¹¹ = 201212042173 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 (201212044721) 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, 283275 + ... + 694743.

It is an arithmetic number, because the mean of its divisors is an integer number (33535627940).

Almost surely, 2^201212044221 is an apocalyptic number.

It is an amenable number.

201212044221 is a deficient number, since it is larger than the sum of its proper divisors (67072979299).

201212044221 is a wasteful number, since it uses less digits than its factorization.

201212044221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574475.

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

Adding to 201212044221 its reverse (122440212102), we get a palindrome (323652256323).

The spelling of 201212044221 in words is "two hundred one billion, two hundred twelve million, forty-four thousand, two hundred twenty-one".