223122121232 has 20 divisors (see below), whose sum is σ = 440455698540. Its totient is φ = 109456134528.

The previous prime is 223122121223. The next prime is 223122121253. The reversal of 223122121232 is 232121221322.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 76184832256 + 146937288976 = 276016^2 + 383324^2 .

It is a super-3 number, since 3×223122121232³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223122121198 and 223122121207.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131557007 + ... + 131558702.

It is an arithmetic number, because the mean of its divisors is an integer number (22022784927).

Almost surely, 2^223122121232 is an apocalyptic number.

It is an amenable number.

223122121232 is a deficient number, since it is larger than the sum of its proper divisors (217333577308).

223122121232 is a wasteful number, since it uses less digits than its factorization.

223122121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263115770 (or 263115764 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

Adding to 223122121232 its reverse (232121221322), we get a palindrome (455243342554).

The spelling of 223122121232 in words is "two hundred twenty-three billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred thirty-two".