222775435789217 has 2 divisors, whose sum is σ = 222775435789218. Its totient is φ = 222775435789216.

The previous prime is 222775435789213. The next prime is 222775435789219. The reversal of 222775435789217 is 712987534577222.

222775435789217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184795775669521 + 37979660119696 = 13593961^2 + 6162764^2 .

It is a cyclic number.

It is not a de Polignac number, because 222775435789217 - 2² = 222775435789213 is a prime.

Together with 222775435789219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222775435789213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111387717894608 + 111387717894609.

It is an arithmetic number, because the mean of its divisors is an integer number (111387717894609).

Almost surely, 2^{222775435789217} is an apocalyptic number.

It is an amenable number.

222775435789217 is a deficient number, since it is larger than the sum of its proper divisors (1).

222775435789217 is an equidigital number, since it uses as much as digits as its factorization.

222775435789217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829785600, while the sum is 71.

The spelling of 222775435789217 in words is "two hundred twenty-two trillion, seven hundred seventy-five billion, four hundred thirty-five million, seven hundred eighty-nine thousand, two hundred seventeen".