202010202101 has 2 divisors, whose sum is σ = 202010202102. Its totient is φ = 202010202100.

The previous prime is 202010202083. The next prime is 202010202103. The reversal of 202010202101 is 101202010202.

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., 185071179601 + 16939022500 = 430199^2 + 130150^2 .

It is a cyclic number.

It is not a de Polignac number, because 202010202101 - 2¹⁰ = 202010201077 is a prime.

Together with 202010202103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202010202103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101005101050 + 101005101051.

It is an arithmetic number, because the mean of its divisors is an integer number (101005101051).

Almost surely, 2^202010202101 is an apocalyptic number.

It is an amenable number.

202010202101 is a deficient number, since it is larger than the sum of its proper divisors (1).

202010202101 is an equidigital number, since it uses as much as digits as its factorization.

202010202101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202010202101 its reverse (101202010202), we get a palindrome (303212212303).

It can be divided in two parts, 202010202 and 101, that multiplied together give a palindrome (20403030402).

The spelling of 202010202101 in words is "two hundred two billion, ten million, two hundred two thousand, one hundred one".