223121332 has 24 divisors (see below), whose sum is σ = 469730240. Its totient is φ = 90590400.

The previous prime is 223121287. The next prime is 223121333. The reversal of 223121332 is 233121322.

It is a super-3 number, since 3×223121332³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223121333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209169 + ... + 210232.

Almost surely, 2^223121332 is an apocalyptic number.

It is an amenable number.

223121332 is an abundant number, since it is smaller than the sum of its proper divisors (246608908).

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

223121332 is a wasteful number, since it uses less digits than its factorization.

223121332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419431 (or 419429 counting only the distinct ones).

The product of its digits is 432, while the sum is 19.

The square root of 223121332 is about 14937.2464664676. The cubic root of 223121332 is about 606.5226604753.

Adding to 223121332 its reverse (233121322), we get a palindrome (456242654).

The spelling of 223121332 in words is "two hundred twenty-three million, one hundred twenty-one thousand, three hundred thirty-two".