223017229009 has 3 divisors (see below), whose sum is σ = 223017701257. Its totient is φ = 223016756762.

The previous prime is 223017228989. The next prime is 223017229037. The reversal of 223017229009 is 900922710322.

The square root of 223017229009 is 472247.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 223017229009 - 2⁵ = 223017228977 is a prime.

It is a super-2 number, since 2×223017229009² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223017220009) 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 in 2 ways as a sum of consecutive naturals, for example, 236124 + ... + 708370.

Almost surely, 2^223017229009 is an apocalyptic number.

223017229009 is the 472247-th square number.

223017229009 is the 236124-th centered octagonal number.

It is an amenable number.

223017229009 is a deficient number, since it is larger than the sum of its proper divisors (472248).

223017229009 is an frugal number, since it uses more digits than its factorization.

223017229009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944494 (or 472247 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 223017229009 in words is "two hundred twenty-three billion, seventeen million, two hundred twenty-nine thousand, nine".