2000200421 has 2 divisors, whose sum is σ = 2000200422. Its totient is φ = 2000200420.

The previous prime is 2000200403. The next prime is 2000200429. The reversal of 2000200421 is 1240020002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1318416100 + 681784321 = 36310^2 + 26111^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000200421 - 2³⁰ = 926458597 is a prime.

It is a super-4 number, since 4×2000200421⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000200429) 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, 1000100210 + 1000100211.

It is an arithmetic number, because the mean of its divisors is an integer number (1000100211).

Almost surely, 2^2000200421 is an apocalyptic number.

It is an amenable number.

2000200421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000200421 is an equidigital number, since it uses as much as digits as its factorization.

2000200421 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 2000200421 is about 44723.6002687619. The cubic root of 2000200421 is about 1259.9631342619.

Adding to 2000200421 its reverse (1240020002), we get a palindrome (3240220423).

The spelling of 2000200421 in words is "two billion, two hundred thousand, four hundred twenty-one".