4221970289 has 2 divisors, whose sum is σ = 4221970290. Its totient is φ = 4221970288.

The previous prime is 4221970273. The next prime is 4221970339. The reversal of 4221970289 is 9820791224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3112747264 + 1109223025 = 55792^2 + 33305^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221970289 - 2⁴ = 4221970273 is a prime.

It is not a weakly prime, because it can be changed into another prime (4221970189) 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, 2110985144 + 2110985145.

It is an arithmetic number, because the mean of its divisors is an integer number (2110985145).

Almost surely, 2^4221970289 is an apocalyptic number.

It is an amenable number.

4221970289 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221970289 is an equidigital number, since it uses as much as digits as its factorization.

4221970289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 4221970289 is about 64976.6903512329. The cubic root of 4221970289 is about 1616.2370479111.

The spelling of 4221970289 in words is "four billion, two hundred twenty-one million, nine hundred seventy thousand, two hundred eighty-nine".