202010002002101 has 2 divisors, whose sum is σ = 202010002002102. Its totient is φ = 202010002002100.

The previous prime is 202010002002079. The next prime is 202010002002173. The reversal of 202010002002101 is 101200200010202.

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., 202009795390225 + 206611876 = 14213015^2 + 14374^2 .

It is a cyclic number.

It is not a de Polignac number, because 202010002002101 - 2³⁰ = 202008928260277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202010002002401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101005001001050 + 101005001001051.

It is an arithmetic number, because the mean of its divisors is an integer number (101005001001051).

Almost surely, 2^{202010002002101} is an apocalyptic number.

It is an amenable number.

202010002002101 is a deficient number, since it is larger than the sum of its proper divisors (1).

202010002002101 is an equidigital number, since it uses as much as digits as its factorization.

202010002002101 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 202010002002101 its reverse (101200200010202), we get a palindrome (303210202012303).

The spelling of 202010002002101 in words is "two hundred two trillion, ten billion, two million, two thousand, one hundred one".