223212302809 has 2 divisors, whose sum is σ = 223212302810. Its totient is φ = 223212302808.

The previous prime is 223212302791. The next prime is 223212302827. The reversal of 223212302809 is 908203212322.

It is a balanced prime because it is at equal distance from previous prime (223212302791) and next prime (223212302827).

It can be written as a sum of positive squares in only one way, i.e., 152959210000 + 70253092809 = 391100^2 + 265053^2 .

It is a cyclic number.

It is not a de Polignac number, because 223212302809 - 2⁹ = 223212302297 is a prime.

It is a super-3 number, since 3×223212302809³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (223212302849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111606151404 + 111606151405.

It is an arithmetic number, because the mean of its divisors is an integer number (111606151405).

Almost surely, 2^223212302809 is an apocalyptic number.

It is an amenable number.

223212302809 is a deficient number, since it is larger than the sum of its proper divisors (1).

223212302809 is an equidigital number, since it uses as much as digits as its factorization.

223212302809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 223212302809 in words is "two hundred twenty-three billion, two hundred twelve million, three hundred two thousand, eight hundred nine".