2000040221 has 2 divisors, whose sum is σ = 2000040222. Its totient is φ = 2000040220.

The previous prime is 2000040197. The next prime is 2000040227. The reversal of 2000040221 is 1220400002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1084977721 + 915062500 = 32939^2 + 30250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000040221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000040227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000020110 + 1000020111.

It is an arithmetic number, because the mean of its divisors is an integer number (1000020111).

Almost surely, 2^2000040221 is an apocalyptic number.

It is an amenable number.

2000040221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000040221 is an equidigital number, since it uses as much as digits as its factorization.

2000040221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2000040221 is about 44721.8092321856. The cubic root of 2000040221 is about 1259.9294957190.

Adding to 2000040221 its reverse (1220400002), we get a palindrome (3220440223).

The spelling of 2000040221 in words is "two billion, forty thousand, two hundred twenty-one".