201202002000221 has 2 divisors, whose sum is σ = 201202002000222. Its totient is φ = 201202002000220.

The previous prime is 201202002000191. The next prime is 201202002000277. The reversal of 201202002000221 is 122000200202102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136614837415225 + 64587164584996 = 11688235^2 + 8036614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201202002000221 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201202002000196 and 201202002000205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201202002000121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100601001000110 + 100601001000111.

It is an arithmetic number, because the mean of its divisors is an integer number (100601001000111).

Almost surely, 2^{201202002000221} is an apocalyptic number.

It is an amenable number.

201202002000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

201202002000221 is an equidigital number, since it uses as much as digits as its factorization.

201202002000221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 201202002000221 its reverse (122000200202102), we get a palindrome (323202202202323).

The spelling of 201202002000221 in words is "two hundred one trillion, two hundred two billion, two million, two hundred twenty-one", and thus it is an aban number.