223012209 has 32 divisors (see below), whose sum is σ = 364216320. Its totient is φ = 118590912.

The previous prime is 223012189. The next prime is 223012213. The reversal of 223012209 is 902210322.

It is not a de Polignac number, because 223012209 - 2⁷ = 223012081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (223012219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11632 + ... + 24110.

It is an arithmetic number, because the mean of its divisors is an integer number (11381760).

Almost surely, 2^223012209 is an apocalyptic number.

It is an amenable number.

223012209 is a deficient number, since it is larger than the sum of its proper divisors (141204111).

223012209 is a wasteful number, since it uses less digits than its factorization.

223012209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12549.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 223012209 is about 14933.5933050288. The cubic root of 223012209 is about 606.4237660539.

The spelling of 223012209 in words is "two hundred twenty-three million, twelve thousand, two hundred nine".