223220164467281 has 2 divisors, whose sum is σ = 223220164467282. Its totient is φ = 223220164467280.

The previous prime is 223220164467269. The next prime is 223220164467367. The reversal of 223220164467281 is 182764461022322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112166315539600 + 111053848927681 = 10590860^2 + 10538209^2 .

It is a cyclic number.

It is not a de Polignac number, because 223220164467281 - 2⁶ = 223220164467217 is a prime.

It is a super-3 number, since 3×223220164467281³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (223220164467481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111610082233640 + 111610082233641.

It is an arithmetic number, because the mean of its divisors is an integer number (111610082233641).

Almost surely, 2^{223220164467281} is an apocalyptic number.

It is an amenable number.

223220164467281 is a deficient number, since it is larger than the sum of its proper divisors (1).

223220164467281 is an equidigital number, since it uses as much as digits as its factorization.

223220164467281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3096576, while the sum is 50.

The spelling of 223220164467281 in words is "two hundred twenty-three trillion, two hundred twenty billion, one hundred sixty-four million, four hundred sixty-seven thousand, two hundred eighty-one".