200003221081 has 2 divisors, whose sum is σ = 200003221082. Its totient is φ = 200003221080.

The previous prime is 200003221073. The next prime is 200003221109. The reversal of 200003221081 is 180122300002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150401249856 + 49601971225 = 387816^2 + 222715^2 .

It is a cyclic number.

It is not a de Polignac number, because 200003221081 - 2³ = 200003221073 is a prime.

It is a super-2 number, since 2×200003221081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200003221021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100001610540 + 100001610541.

It is an arithmetic number, because the mean of its divisors is an integer number (100001610541).

Almost surely, 2^200003221081 is an apocalyptic number.

It is an amenable number.

200003221081 is a deficient number, since it is larger than the sum of its proper divisors (1).

200003221081 is an equidigital number, since it uses as much as digits as its factorization.

200003221081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 200003221081 its reverse (180122300002), we get a palindrome (380125521083).

The spelling of 200003221081 in words is "two hundred billion, three million, two hundred twenty-one thousand, eighty-one".