2231021232 has 300 divisors, whose sum is σ = 7291673928. Its totient is φ = 657676800.

The previous prime is 2231021203. The next prime is 2231021269. The reversal of 2231021232 is 2321201322.

2231021232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2231021232³ (a number of 29 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 6429283 + ... + 6429629.

Almost surely, 2^2231021232 is an apocalyptic number.

2231021232 is a gapful number since it is divisible by the number (22) 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 2231021232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3645836964).

2231021232 is an abundant number, since it is smaller than the sum of its proper divisors (5060652696).

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

2231021232 is a wasteful number, since it uses less digits than its factorization.

2231021232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 404 counting only the distinct ones).

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

The square root of 2231021232 is about 47233.6874698557. The cubic root of 2231021232 is about 1306.6759600663.

Adding to 2231021232 its reverse (2321201322), we get a palindrome (4552222554).

The spelling of 2231021232 in words is "two billion, two hundred thirty-one million, twenty-one thousand, two hundred thirty-two".