223112412 has 72 divisors (see below), whose sum is σ = 576300816. Its totient is φ = 72762624.

The previous prime is 223112401. The next prime is 223112413. The reversal of 223112412 is 214211322.

It is a happy number.

223112412 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 3×223112412³ (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 a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223112413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 561798 + ... + 562194.

It is an arithmetic number, because the mean of its divisors is an integer number (8004178).

Almost surely, 2^223112412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223112412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288150408).

223112412 is an abundant number, since it is smaller than the sum of its proper divisors (353188404).

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

223112412 is a wasteful number, since it uses less digits than its factorization.

223112412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707 (or 702 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 223112412 is about 14936.9478810097. The cubic root of 223112412 is about 606.5145777964.

Adding to 223112412 its reverse (214211322), we get a palindrome (437323734).

The spelling of 223112412 in words is "two hundred twenty-three million, one hundred twelve thousand, four hundred twelve".