210221001110233 has 2 divisors, whose sum is σ = 210221001110234. Its totient is φ = 210221001110232.

The previous prime is 210221001110191. The next prime is 210221001110279. The reversal of 210221001110233 is 332011100122012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207915866426944 + 2305134683289 = 14419288^2 + 1518267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210221001110233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210221001110233.

It is not a weakly prime, because it can be changed into another prime (210221001110633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105110500555116 + 105110500555117.

It is an arithmetic number, because the mean of its divisors is an integer number (105110500555117).

Almost surely, 2^{210221001110233} is an apocalyptic number.

It is an amenable number.

210221001110233 is a deficient number, since it is larger than the sum of its proper divisors (1).

210221001110233 is an equidigital number, since it uses as much as digits as its factorization.

210221001110233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 210221001110233 its reverse (332011100122012), we get a palindrome (542232101232245).

The spelling of 210221001110233 in words is "two hundred ten trillion, two hundred twenty-one billion, one million, one hundred ten thousand, two hundred thirty-three".