222219839857 has 2 divisors, whose sum is σ = 222219839858. Its totient is φ = 222219839856.

The previous prime is 222219839833. The next prime is 222219839873. The reversal of 222219839857 is 758938912222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139255102561 + 82964737296 = 373169^2 + 288036^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222219839857 is a prime.

It is not a weakly prime, because it can be changed into another prime (222219839827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111109919928 + 111109919929.

It is an arithmetic number, because the mean of its divisors is an integer number (111109919929).

Almost surely, 2^222219839857 is an apocalyptic number.

It is an amenable number.

222219839857 is a deficient number, since it is larger than the sum of its proper divisors (1).

222219839857 is an equidigital number, since it uses as much as digits as its factorization.

222219839857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 58.

The spelling of 222219839857 in words is "two hundred twenty-two billion, two hundred nineteen million, eight hundred thirty-nine thousand, eight hundred fifty-seven".