2020212110221 has 2 divisors, whose sum is σ = 2020212110222. Its totient is φ = 2020212110220.

The previous prime is 2020212110179. The next prime is 2020212110233. The reversal of 2020212110221 is 1220112120202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2009833594596 + 10378515625 = 1417686^2 + 101875^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020212110221 - 2²⁵ = 2020178555789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2020212110195 and 2020212110204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020212110261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010106055110 + 1010106055111.

It is an arithmetic number, because the mean of its divisors is an integer number (1010106055111).

Almost surely, 2^{2020212110221} is an apocalyptic number.

It is an amenable number.

2020212110221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020212110221 is an equidigital number, since it uses as much as digits as its factorization.

2020212110221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2020212110221 its reverse (1220112120202), we get a palindrome (3240324230423).

The spelling of 2020212110221 in words is "two trillion, twenty billion, two hundred twelve million, one hundred ten thousand, two hundred twenty-one".