2231220032 has 28 divisors (see below), whose sum is σ = 4477336740. Its totient is φ = 1103072256.

The previous prime is 2231219999. The next prime is 2231220037. The reversal of 2231220032 is 2300221322.

2231220032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 875213056 + 1356006976 = 29584^2 + 36824^2 .

It is a super-3 number, since 3×2231220032³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231220037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190163 + ... + 201554.

Almost surely, 2^2231220032 is an apocalyptic number.

It is an amenable number.

2231220032 is an abundant number, since it is smaller than the sum of its proper divisors (2246116708).

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

2231220032 is an equidigital number, since it uses as much as digits as its factorization.

2231220032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391818 (or 391808 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2231220032 is about 47235.7918532123. The cubic root of 2231220032 is about 1306.7147703148.

Adding to 2231220032 its reverse (2300221322), we get a palindrome (4531441354).

The spelling of 2231220032 in words is "two billion, two hundred thirty-one million, two hundred twenty thousand, thirty-two".