223240012 has 12 divisors (see below), whose sum is σ = 392695576. Its totient is φ = 111041280.

The previous prime is 223240009. The next prime is 223240019. The reversal of 223240012 is 210042322.

223240012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223240012³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (223240019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143814 + ... + 145357.

Almost surely, 2^223240012 is an apocalyptic number.

It is an amenable number.

223240012 is a deficient number, since it is larger than the sum of its proper divisors (169455564).

223240012 is a wasteful number, since it uses less digits than its factorization.

223240012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289368 (or 289366 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 223240012 is about 14941.2185580695. The cubic root of 223240012 is about 606.6301794798.

Adding to 223240012 its reverse (210042322), we get a palindrome (433282334).

The spelling of 223240012 in words is "two hundred twenty-three million, two hundred forty thousand, twelve".