2010210421 has 2 divisors, whose sum is σ = 2010210422. Its totient is φ = 2010210420.

The previous prime is 2010210401. The next prime is 2010210439. The reversal of 2010210421 is 1240120102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1275204100 + 735006321 = 35710^2 + 27111^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010210421 - 2⁹ = 2010209909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2010210401) 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, 1005105210 + 1005105211.

It is an arithmetic number, because the mean of its divisors is an integer number (1005105211).

Almost surely, 2^2010210421 is an apocalyptic number.

It is an amenable number.

2010210421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010210421 is an equidigital number, since it uses as much as digits as its factorization.

2010210421 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 13.

The square root of 2010210421 is about 44835.3702003229. The cubic root of 2010210421 is about 1262.0614656500.

Adding to 2010210421 its reverse (1240120102), we get a palindrome (3250330523).

The spelling of 2010210421 in words is "two billion, ten million, two hundred ten thousand, four hundred twenty-one".