202010202112009 has 2 divisors, whose sum is σ = 202010202112010. Its totient is φ = 202010202112008.

The previous prime is 202010202112003. The next prime is 202010202112031. The reversal of 202010202112009 is 900211202010202.

It is an a-pointer prime, because the next prime (202010202112031) can be obtained adding 202010202112009 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139579976473609 + 62430225638400 = 11814397^2 + 7901280^2 .

It is a cyclic number.

It is not a de Polignac number, because 202010202112009 - 2³ = 202010202112001 is a prime.

It is not a weakly prime, because it can be changed into another prime (202010202112001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101005101056004 + 101005101056005.

It is an arithmetic number, because the mean of its divisors is an integer number (101005101056005).

Almost surely, 2^{202010202112009} is an apocalyptic number.

It is an amenable number.

202010202112009 is a deficient number, since it is larger than the sum of its proper divisors (1).

202010202112009 is an equidigital number, since it uses as much as digits as its factorization.

202010202112009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 202010202112009 in words is "two hundred two trillion, ten billion, two hundred two million, one hundred twelve thousand, nine".