223143212 has 6 divisors (see below), whose sum is σ = 390500628. Its totient is φ = 111571604.

The previous prime is 223143187. The next prime is 223143223. The reversal of 223143212 is 212341322.

223143212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223143212³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27892898 + ... + 27892905.

It is an arithmetic number, because the mean of its divisors is an integer number (65083438).

Almost surely, 2^223143212 is an apocalyptic number.

It is an amenable number.

223143212 is a deficient number, since it is larger than the sum of its proper divisors (167357416).

223143212 is a wasteful number, since it uses less digits than its factorization.

223143212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55785807 (or 55785805 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 223143212 is about 14937.9788458814. The cubic root of 223143212 is about 606.5424856857.

Adding to 223143212 its reverse (212341322), we get a palindrome (435484534).

The spelling of 223143212 in words is "two hundred twenty-three million, one hundred forty-three thousand, two hundred twelve".