210221012222 has 16 divisors (see below), whose sum is σ = 345154804512. Its totient is φ = 95434506720.

The previous prime is 210221012213. The next prime is 210221012227. The reversal of 210221012222 is 222210122012.

It is a happy number.

210221012222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 210221012222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210221012227) 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 7 ways as a sum of consecutive naturals, for example, 66272378 + ... + 66275549.

It is an arithmetic number, because the mean of its divisors is an integer number (21572175282).

Almost surely, 2^210221012222 is an apocalyptic number.

210221012222 is a deficient number, since it is larger than the sum of its proper divisors (134933792290).

210221012222 is a wasteful number, since it uses less digits than its factorization.

210221012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132548003.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 210221012222 its reverse (222210122012), we get a palindrome (432431134234).

The spelling of 210221012222 in words is "two hundred ten billion, two hundred twenty-one million, twelve thousand, two hundred twenty-two".