4302111221 has 2 divisors, whose sum is σ = 4302111222. Its totient is φ = 4302111220.

The previous prime is 4302111173. The next prime is 4302111241. The reversal of 4302111221 is 1221112034.

4302111221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4299424900 + 2686321 = 65570^2 + 1639^2 .

It is a cyclic number.

It is not a de Polignac number, because 4302111221 - 2¹⁸ = 4301849077 is a prime.

It is a super-2 number, since 2×4302111221² = 37016321915708221682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4302111221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4302111241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2151055610 + 2151055611.

It is an arithmetic number, because the mean of its divisors is an integer number (2151055611).

Almost surely, 2^4302111221 is an apocalyptic number.

It is an amenable number.

4302111221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4302111221 is an equidigital number, since it uses as much as digits as its factorization.

4302111221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 4302111221 is about 65590.4811767683. The cubic root of 4302111221 is about 1626.3994219989.

Adding to 4302111221 its reverse (1221112034), we get a palindrome (5523223255).

The spelling of 4302111221 in words is "four billion, three hundred two million, one hundred eleven thousand, two hundred twenty-one".