1223212232 has 48 divisors (see below), whose sum is σ = 2539395600. Its totient is φ = 551944800.

The previous prime is 1223212217. The next prime is 1223212253. The reversal of 1223212232 is 2322123221.

It is a happy 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, 130007 + ... + 139097.

It is an arithmetic number, because the mean of its divisors is an integer number (52904075).

Almost surely, 2^1223212232 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 1223212232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269697800).

1223212232 is an abundant number, since it is smaller than the sum of its proper divisors (1316183368).

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

1223212232 is a wasteful number, since it uses less digits than its factorization.

1223212232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9258 (or 9243 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 1223212232 is about 34974.4511322194. The cubic root of 1223212232 is about 1069.4667130299.

Adding to 1223212232 its reverse (2322123221), we get a palindrome (3545335453).

The spelling of 1223212232 in words is "one billion, two hundred twenty-three million, two hundred twelve thousand, two hundred thirty-two".