2222204105857 has 2 divisors, whose sum is σ = 2222204105858. Its totient is φ = 2222204105856.

The previous prime is 2222204105839. The next prime is 2222204105897. The reversal of 2222204105857 is 7585014022222.

It is an a-pointer prime, because the next prime (2222204105897) can be obtained adding 2222204105857 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2162073219201 + 60130886656 = 1470399^2 + 245216^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222204105857 - 2²³ = 2222195717249 is a prime.

It is not a weakly prime, because it can be changed into another prime (2222204105897) 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, 1111102052928 + 1111102052929.

It is an arithmetic number, because the mean of its divisors is an integer number (1111102052929).

Almost surely, 2^{2222204105857} is an apocalyptic number.

It is an amenable number.

2222204105857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222204105857 is an equidigital number, since it uses as much as digits as its factorization.

2222204105857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 179200, while the sum is 40.

The spelling of 2222204105857 in words is "two trillion, two hundred twenty-two billion, two hundred four million, one hundred five thousand, eight hundred fifty-seven".