223211120 has 60 divisors (see below), whose sum is σ = 570458280. Its totient is φ = 81164160.

The previous prime is 223211119. The next prime is 223211141. The reversal of 223211120 is 21112322.

It is a happy number.

It is a super-3 number, since 3×223211120³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223211095 and 223211104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1850 + ... + 21209.

It is an arithmetic number, because the mean of its divisors is an integer number (9507638).

Almost surely, 2^223211120 is an apocalyptic number.

223211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223211120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285229140).

223211120 is an abundant number, since it is smaller than the sum of its proper divisors (347247160).

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

223211120 is a wasteful number, since it uses less digits than its factorization.

223211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23094 (or 23077 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 223211120 is about 14940.2516712403. The cubic root of 223211120 is about 606.6040080733.

Adding to 223211120 its reverse (21112322), we get a palindrome (244323442).

The spelling of 223211120 in words is "two hundred twenty-three million, two hundred eleven thousand, one hundred twenty".