201202021202009 has 2 divisors, whose sum is σ = 201202021202010. Its totient is φ = 201202021202008.

The previous prime is 201202021201991. The next prime is 201202021202023. The reversal of 201202021202009 is 900202120202102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194921248416400 + 6280772785609 = 13961420^2 + 2506147^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201202021202009 is a prime.

It is a super-3 number, since 3×201202021202009³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (201202021202029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100601010601004 + 100601010601005.

It is an arithmetic number, because the mean of its divisors is an integer number (100601010601005).

Almost surely, 2^{201202021202009} is an apocalyptic number.

It is an amenable number.

201202021202009 is a deficient number, since it is larger than the sum of its proper divisors (1).

201202021202009 is an equidigital number, since it uses as much as digits as its factorization.

201202021202009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 201202021202009 in words is "two hundred one trillion, two hundred two billion, twenty-one million, two hundred two thousand, nine".