223212204 has 18 divisors (see below), whose sum is σ = 564230940. Its totient is φ = 74404056.

The previous prime is 223212191. The next prime is 223212211. The reversal of 223212204 is 402212322.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×223212204³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3100134 + ... + 3100205.

Almost surely, 2^223212204 is an apocalyptic number.

It is an amenable number.

223212204 is an abundant number, since it is smaller than the sum of its proper divisors (341018736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223212204 is a wasteful number, since it uses less digits than its factorization.

223212204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6200349 (or 6200344 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 223212204 is about 14940.2879490323. The cubic root of 223212204 is about 606.6049900400.

Adding to 223212204 its reverse (402212322), we get a palindrome (625424526).

The spelling of 223212204 in words is "two hundred twenty-three million, two hundred twelve thousand, two hundred four".