201221000210 has 16 divisors (see below), whose sum is σ = 362202912792. Its totient is φ = 80487264000.

The previous prime is 201221000203. The next prime is 201221000257. The reversal of 201221000210 is 12000122102.

It is a happy number.

201221000210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 129363228241 + 71857771969 = 359671^2 + 268063^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201221000191 and 201221000200.

It is an unprimeable number.

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, 1278650 + ... + 1427370.

Almost surely, 2^201221000210 is an apocalyptic number.

201221000210 is a deficient number, since it is larger than the sum of its proper divisors (160981912582).

201221000210 is a wasteful number, since it uses less digits than its factorization.

201221000210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284029.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201221000210 its reverse (12000122102), we get a palindrome (213221122312).

The spelling of 201221000210 in words is "two hundred one billion, two hundred twenty-one million, two hundred ten", and thus it is an aban number.