202010012221 has 2 divisors, whose sum is σ = 202010012222. Its totient is φ = 202010012220.

The previous prime is 202010012209. The next prime is 202010012293. The reversal of 202010012221 is 122210010202.

It is a happy number.

202010012221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109435256100 + 92574756121 = 330810^2 + 304261^2 .

It is a cyclic number.

It is not a de Polignac number, because 202010012221 - 2¹¹ = 202010010173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202010012821) 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 as a sum of consecutive naturals, namely, 101005006110 + 101005006111.

It is an arithmetic number, because the mean of its divisors is an integer number (101005006111).

Almost surely, 2^202010012221 is an apocalyptic number.

It is an amenable number.

202010012221 is a deficient number, since it is larger than the sum of its proper divisors (1).

202010012221 is an equidigital number, since it uses as much as digits as its factorization.

202010012221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202010012221 its reverse (122210010202), we get a palindrome (324220022423).

The spelling of 202010012221 in words is "two hundred two billion, ten million, twelve thousand, two hundred twenty-one".