222232323312 has 120 divisors (see below), whose sum is σ = 634292661600. Its totient is φ = 72609099264.

The previous prime is 222232323289. The next prime is 222232323317. The reversal of 222232323312 is 213323232222.

222232323312 is a `hidden beast` number, since 2 + 2 + 2 + 2 + 323 + 2 + 331 + 2 = 666.

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 (222232323317) 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, 8144989 + ... + 8172227.

It is an arithmetic number, because the mean of its divisors is an integer number (5285772180).

Almost surely, 2^222232323312 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 222232323312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317146330800).

222232323312 is an abundant number, since it is smaller than the sum of its proper divisors (412060338288).

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

222232323312 is a wasteful number, since it uses less digits than its factorization.

222232323312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28375 (or 28366 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

Adding to 222232323312 its reverse (213323232222), we get a palindrome (435555555534).

The spelling of 222232323312 in words is "two hundred twenty-two billion, two hundred thirty-two million, three hundred twenty-three thousand, three hundred twelve".