210010202222221 has 4 divisors (see below), whose sum is σ = 213569697175200. Its totient is φ = 206450707269244.

The previous prime is 210010202222173. The next prime is 210010202222251. The reversal of 210010202222221 is 122222202010012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210010202222221 - 2¹⁷ = 210010202091149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210010202222251) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1779747476401 + ... + 1779747476518.

It is an arithmetic number, because the mean of its divisors is an integer number (53392424293800).

Almost surely, 2^{210010202222221} is an apocalyptic number.

It is an amenable number.

210010202222221 is a deficient number, since it is larger than the sum of its proper divisors (3559494952979).

210010202222221 is an equidigital number, since it uses as much as digits as its factorization.

210010202222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559494952978.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 210010202222221 its reverse (122222202010012), we get a palindrome (332232404232233).

The spelling of 210010202222221 in words is "two hundred ten trillion, ten billion, two hundred two million, two hundred twenty-two thousand, two hundred twenty-one".