4221309929 has 2 divisors, whose sum is σ = 4221309930. Its totient is φ = 4221309928.

The previous prime is 4221309907. The next prime is 4221309979. The reversal of 4221309929 is 9299031224.

4221309929 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3424941529 + 796368400 = 58523^2 + 28220^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221309929 - 2¹² = 4221305833 is a prime.

It is not a weakly prime, because it can be changed into another prime (4221309979) 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, 2110654964 + 2110654965.

It is an arithmetic number, because the mean of its divisors is an integer number (2110654965).

Almost surely, 2^4221309929 is an apocalyptic number.

It is an amenable number.

4221309929 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221309929 is an equidigital number, since it uses as much as digits as its factorization.

4221309929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 4221309929 is about 64971.6086379274. The cubic root of 4221309929 is about 1616.1527780976.

The spelling of 4221309929 in words is "four billion, two hundred twenty-one million, three hundred nine thousand, nine hundred twenty-nine".