1232021112 has 96 divisors (see below), whose sum is σ = 3616773120. Its totient is φ = 348680640.

The previous prime is 1232021111. The next prime is 1232021137. The reversal of 1232021112 is 2111202321.

It is a junction number, because it is equal to n+sod(n) for n = 1232021091 and 1232021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232021111) 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, 120937 + ... + 130727.

It is an arithmetic number, because the mean of its divisors is an integer number (37674720).

Almost surely, 2^1232021112 is an apocalyptic number.

1232021112 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 1232021112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1808386560).

1232021112 is an abundant number, since it is smaller than the sum of its proper divisors (2384752008).

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

1232021112 is a wasteful number, since it uses less digits than its factorization.

1232021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9921 (or 9910 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1232021112 is about 35100.1582902414. The cubic root of 1232021112 is about 1072.0278056759.

Adding to 1232021112 its reverse (2111202321), we get a palindrome (3343223433).

The spelling of 1232021112 in words is "one billion, two hundred thirty-two million, twenty-one thousand, one hundred twelve".