8342221801 has 2 divisors, whose sum is σ = 8342221802. Its totient is φ = 8342221800.

The previous prime is 8342221777. The next prime is 8342221819. The reversal of 8342221801 is 1081222438.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5490661801 + 2851560000 = 74099^2 + 53400^2 .

It is a cyclic number.

It is not a de Polignac number, because 8342221801 - 2²⁵ = 8308667369 is a prime.

It is a super-3 number, since 3×8342221801³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (8342221001) 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, 4171110900 + 4171110901.

It is an arithmetic number, because the mean of its divisors is an integer number (4171110901).

Almost surely, 2^8342221801 is an apocalyptic number.

It is an amenable number.

8342221801 is a deficient number, since it is larger than the sum of its proper divisors (1).

8342221801 is an equidigital number, since it uses as much as digits as its factorization.

8342221801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 8342221801 is about 91335.7640850505. The cubic root of 8342221801 is about 2028.1212284741.

The spelling of 8342221801 in words is "eight billion, three hundred forty-two million, two hundred twenty-one thousand, eight hundred one".