223212212 has 24 divisors (see below), whose sum is σ = 401296896. Its totient is φ = 108584288.

The previous prime is 223212211. The next prime is 223212221. The reversal of 223212212 is 212212322.

It is a super-3 number, since 3×223212212³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223212211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29093 + ... + 35955.

It is an arithmetic number, because the mean of its divisors is an integer number (16720704).

Almost surely, 2^223212212 is an apocalyptic number.

It is an amenable number.

223212212 is a deficient number, since it is larger than the sum of its proper divisors (178084684).

223212212 is a wasteful number, since it uses less digits than its factorization.

223212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7087 (or 7085 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 223212212 is about 14940.2882167648. The cubic root of 223212212 is about 606.6049972870.

Adding to 223212212 its reverse (212212322), we get a palindrome (435424534).

The spelling of 223212212 in words is "two hundred twenty-three million, two hundred twelve thousand, two hundred twelve".