210221120320211 has 32 divisors (see below), whose sum is σ = 282341596174848. Its totient is φ = 151161570743040.

The previous prime is 210221120320199. The next prime is 210221120320219. The reversal of 210221120320211 is 112023021122012.

It is not a de Polignac number, because 210221120320211 - 2²⁶ = 210221053211347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210221120320219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28979705 + ... + 35500218.

It is an arithmetic number, because the mean of its divisors is an integer number (8823174880464).

Almost surely, 2^{210221120320211} is an apocalyptic number.

210221120320211 is a deficient number, since it is larger than the sum of its proper divisors (72120475854637).

210221120320211 is a wasteful number, since it uses less digits than its factorization.

210221120320211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64483211.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 210221120320211 its reverse (112023021122012), we get a palindrome (322244141442223).

It can be divided in two parts, 2102211 and 20320211, that added together give a palindrome (22422422).

The spelling of 210221120320211 in words is "two hundred ten trillion, two hundred twenty-one billion, one hundred twenty million, three hundred twenty thousand, two hundred eleven".