2000203200221 has 2 divisors, whose sum is σ = 2000203200222. Its totient is φ = 2000203200220.

The previous prime is 2000203200211. The next prime is 2000203200223. The reversal of 2000203200221 is 1220023020002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1827052339225 + 173150860996 = 1351685^2 + 416114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000203200221 is a prime.

Together with 2000203200223, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2000203200196 and 2000203200205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000203200223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000101600110 + 1000101600111.

It is an arithmetic number, because the mean of its divisors is an integer number (1000101600111).

Almost surely, 2^{2000203200221} is an apocalyptic number.

It is an amenable number.

2000203200221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000203200221 is an equidigital number, since it uses as much as digits as its factorization.

2000203200221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 2000203200221 its reverse (1220023020002), we get a palindrome (3220226220223).

The spelling of 2000203200221 in words is "two trillion, two hundred three million, two hundred thousand, two hundred twenty-one".