2219564229209 has 2 divisors, whose sum is σ = 2219564229210. Its totient is φ = 2219564229208.

The previous prime is 2219564229199. The next prime is 2219564229229. The reversal of 2219564229209 is 9029224659122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2136850469209 + 82713760000 = 1461797^2 + 287600^2 .

It is a cyclic number.

It is not a de Polignac number, because 2219564229209 - 2⁸ = 2219564228953 is a prime.

It is not a weakly prime, because it can be changed into another prime (2219564229229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109782114604 + 1109782114605.

It is an arithmetic number, because the mean of its divisors is an integer number (1109782114605).

Almost surely, 2^{2219564229209} is an apocalyptic number.

It is an amenable number.

2219564229209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2219564229209 is an equidigital number, since it uses as much as digits as its factorization.

2219564229209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 2219564229209 in words is "two trillion, two hundred nineteen billion, five hundred sixty-four million, two hundred twenty-nine thousand, two hundred nine".