201012220221 has 16 divisors (see below), whose sum is σ = 268861806720. Its totient is φ = 133585666560.

The previous prime is 201012220207. The next prime is 201012220289. The reversal of 201012220221 is 122022210102.

201012220221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201012220221 - 2²⁹ = 200475349309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201012220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012220021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3018201 + ... + 3084081.

It is an arithmetic number, because the mean of its divisors is an integer number (16803862920).

Almost surely, 2^201012220221 is an apocalyptic number.

It is an amenable number.

201012220221 is a deficient number, since it is larger than the sum of its proper divisors (67849586499).

201012220221 is a wasteful number, since it uses less digits than its factorization.

201012220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69076.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201012220221 its reverse (122022210102), we get a palindrome (323034430323).

The spelling of 201012220221 in words is "two hundred one billion, twelve million, two hundred twenty thousand, two hundred twenty-one".