201210222110221 has 8 divisors (see below), whose sum is σ = 201235255715960. Its totient is φ = 201185190001152.

The previous prime is 201210222110159. The next prime is 201210222110263. The reversal of 201210222110221 is 122011222012102.

It can be written as a sum of positive squares in 4 ways, for example, as 40707015842025 + 160503206268196 = 6380205^2 + 12668986^2 .

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 201210222110221 - 2¹¹ = 201210222108173 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 (201210222110921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281587231 + ... + 282300883.

It is an arithmetic number, because the mean of its divisors is an integer number (25154406964495).

Almost surely, 2^{201210222110221} is an apocalyptic number.

It is an amenable number.

201210222110221 is a deficient number, since it is larger than the sum of its proper divisors (25033605739).

201210222110221 is a wasteful number, since it uses less digits than its factorization.

201210222110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748335.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201210222110221 its reverse (122011222012102), we get a palindrome (323221444122323).

The spelling of 201210222110221 in words is "two hundred one trillion, two hundred ten billion, two hundred twenty-two million, one hundred ten thousand, two hundred twenty-one".