222564449993 has 2 divisors, whose sum is σ = 222564449994. Its totient is φ = 222564449992.

The previous prime is 222564449983. The next prime is 222564450011. The reversal of 222564449993 is 399944465222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220226534089 + 2337915904 = 469283^2 + 48352^2 .

It is a cyclic number.

It is not a de Polignac number, because 222564449993 - 2⁶ = 222564449929 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (222564449903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111282224996 + 111282224997.

It is an arithmetic number, because the mean of its divisors is an integer number (111282224997).

Almost surely, 2^222564449993 is an apocalyptic number.

It is an amenable number.

222564449993 is a deficient number, since it is larger than the sum of its proper divisors (1).

222564449993 is an equidigital number, since it uses as much as digits as its factorization.

222564449993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33592320, while the sum is 59.

The spelling of 222564449993 in words is "two hundred twenty-two billion, five hundred sixty-four million, four hundred forty-nine thousand, nine hundred ninety-three".