4302212021 has 2 divisors, whose sum is σ = 4302212022. Its totient is φ = 4302212020.

The previous prime is 4302212017. The next prime is 4302212039. The reversal of 4302212021 is 1202122034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2377635121 + 1924576900 = 48761^2 + 43870^2 .

It is a cyclic number.

It is not a de Polignac number, because 4302212021 - 2² = 4302212017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4302212011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2151106010 + 2151106011.

It is an arithmetic number, because the mean of its divisors is an integer number (2151106011).

Almost surely, 2^4302212021 is an apocalyptic number.

It is an amenable number.

4302212021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4302212021 is an equidigital number, since it uses as much as digits as its factorization.

4302212021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 4302212021 is about 65591.2495764488. The cubic root of 4302212021 is about 1626.4121242725.

Adding to 4302212021 its reverse (1202122034), we get a palindrome (5504334055).

The spelling of 4302212021 in words is "four billion, three hundred two million, two hundred twelve thousand, twenty-one".