223017228989 has 2 divisors, whose sum is σ = 223017228990. Its totient is φ = 223017228988.

The previous prime is 223017228977. The next prime is 223017229037. The reversal of 223017228989 is 989822710322.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210183737764 + 12833491225 = 458458^2 + 113285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223017228989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223017228989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223017228949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111508614494 + 111508614495.

It is an arithmetic number, because the mean of its divisors is an integer number (111508614495).

Almost surely, 2^223017228989 is an apocalyptic number.

It is an amenable number.

223017228989 is a deficient number, since it is larger than the sum of its proper divisors (1).

223017228989 is an equidigital number, since it uses as much as digits as its factorization.

223017228989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 223017228989 in words is "two hundred twenty-three billion, seventeen million, two hundred twenty-eight thousand, nine hundred eighty-nine".