1223201232 has 120 divisors (see below), whose sum is σ = 3747358368. Its totient is φ = 369388800.

The previous prime is 1223201227. The next prime is 1223201233. The reversal of 1223201232 is 2321023221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223201233) 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, 523138 + ... + 525470.

Almost surely, 2^1223201232 is an apocalyptic number.

1223201232 is a gapful number since it is divisible by the number (12) 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 1223201232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1873679184).

1223201232 is an abundant number, since it is smaller than the sum of its proper divisors (2524157136).

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

1223201232 is a wasteful number, since it uses less digits than its factorization.

1223201232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689 (or 2680 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1223201232 is about 34974.2938742157. The cubic root of 1223201232 is about 1069.4635072169.

Adding to 1223201232 its reverse (2321023221), we get a palindrome (3544224453).

The spelling of 1223201232 in words is "one billion, two hundred twenty-three million, two hundred one thousand, two hundred thirty-two".