20200110020221 has 2 divisors, whose sum is σ = 20200110020222. Its totient is φ = 20200110020220.

The previous prime is 20200110020177. The next prime is 20200110020267. The reversal of 20200110020221 is 12202001100202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14931570211321 + 5268539808900 = 3864139^2 + 2295330^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200110020221 - 2¹⁷ = 20200109889149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20200110020921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100055010110 + 10100055010111.

It is an arithmetic number, because the mean of its divisors is an integer number (10100055010111).

Almost surely, 2^{20200110020221} is an apocalyptic number.

It is an amenable number.

20200110020221 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200110020221 is an equidigital number, since it uses as much as digits as its factorization.

20200110020221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20200110020221 its reverse (12202001100202), we get a palindrome (32402111120423).

The spelling of 20200110020221 in words is "twenty trillion, two hundred billion, one hundred ten million, twenty thousand, two hundred twenty-one".