222547647689 has 2 divisors, whose sum is σ = 222547647690. Its totient is φ = 222547647688.

The previous prime is 222547647677. The next prime is 222547647719. The reversal of 222547647689 is 986746745222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203022336400 + 19525311289 = 450580^2 + 139733^2 .

It is a cyclic number.

It is not a de Polignac number, because 222547647689 - 2²⁴ = 222530870473 is a prime.

It is not a weakly prime, because it can be changed into another prime (222547647629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111273823844 + 111273823845.

It is an arithmetic number, because the mean of its divisors is an integer number (111273823845).

Almost surely, 2^222547647689 is an apocalyptic number.

It is an amenable number.

222547647689 is a deficient number, since it is larger than the sum of its proper divisors (1).

222547647689 is an equidigital number, since it uses as much as digits as its factorization.

222547647689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81285120, while the sum is 62.

The spelling of 222547647689 in words is "two hundred twenty-two billion, five hundred forty-seven million, six hundred forty-seven thousand, six hundred eighty-nine".