4202335021 has 2 divisors, whose sum is σ = 4202335022. Its totient is φ = 4202335020.

The previous prime is 4202335019. The next prime is 4202335063. The reversal of 4202335021 is 1205332024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3160013796 + 1042321225 = 56214^2 + 32285^2 .

It is a cyclic number.

It is not a de Polignac number, because 4202335021 - 2¹ = 4202335019 is a prime.

Together with 4202335019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 4202334983 and 4202335001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4202335321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2101167510 + 2101167511.

It is an arithmetic number, because the mean of its divisors is an integer number (2101167511).

Almost surely, 2^4202335021 is an apocalyptic number.

It is an amenable number.

4202335021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4202335021 is an equidigital number, since it uses as much as digits as its factorization.

4202335021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 4202335021 is about 64825.4195589971. The cubic root of 4202335021 is about 1613.7275898195.

Adding to 4202335021 its reverse (1205332024), we get a palindrome (5407667045).

The spelling of 4202335021 in words is "four billion, two hundred two million, three hundred thirty-five thousand, twenty-one".