223100122009 has 2 divisors, whose sum is σ = 223100122010. Its totient is φ = 223100122008.

The previous prime is 223100122001. The next prime is 223100122057. The reversal of 223100122009 is 900221001322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222786832009 + 313290000 = 472003^2 + 17700^2 .

It is a cyclic number.

It is not a de Polignac number, because 223100122009 - 2³ = 223100122001 is a prime.

It is a super-3 number, since 3×223100122009³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (223100122001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111550061004 + 111550061005.

It is an arithmetic number, because the mean of its divisors is an integer number (111550061005).

Almost surely, 2^223100122009 is an apocalyptic number.

It is an amenable number.

223100122009 is a deficient number, since it is larger than the sum of its proper divisors (1).

223100122009 is an equidigital number, since it uses as much as digits as its factorization.

223100122009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 223100122009 in words is "two hundred twenty-three billion, one hundred million, one hundred twenty-two thousand, nine".