202010201010221 has 2 divisors, whose sum is σ = 202010201010222. Its totient is φ = 202010201010220.

The previous prime is 202010201010187. The next prime is 202010201010223. The reversal of 202010201010221 is 122010102010202.

202010201010221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188861418494596 + 13148782515625 = 13742686^2 + 3626125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202010201010221 is a prime.

Together with 202010201010223, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 202010201010196 and 202010201010205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202010201010223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101005100505110 + 101005100505111.

It is an arithmetic number, because the mean of its divisors is an integer number (101005100505111).

Almost surely, 2^{202010201010221} is an apocalyptic number.

It is an amenable number.

202010201010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

202010201010221 is an equidigital number, since it uses as much as digits as its factorization.

202010201010221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202010201010221 its reverse (122010102010202), we get a palindrome (324020303020423).

The spelling of 202010201010221 in words is "two hundred two trillion, ten billion, two hundred one million, ten thousand, two hundred twenty-one".