210221001110210 has 16 divisors (see below), whose sum is σ = 378582116600376. Its totient is φ = 84047441643648.

The previous prime is 210221001110191. The next prime is 210221001110233. The reversal of 210221001110210 is 12011100122012.

It can be written as a sum of positive squares in 4 ways, for example, as 191745695589529 + 18475305520681 = 13847227^2 + 4298291^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5119828499 + ... + 5119869558.

Almost surely, 2^{210221001110210} is an apocalyptic number.

210221001110210 is a deficient number, since it is larger than the sum of its proper divisors (168361115490166).

210221001110210 is a wasteful number, since it uses less digits than its factorization.

210221001110210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10239700117.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210221001110210 its reverse (12011100122012), we get a palindrome (222232101232222).

The spelling of 210221001110210 in words is "two hundred ten trillion, two hundred twenty-one billion, one million, one hundred ten thousand, two hundred ten".