2221120032 has 96 divisors (see below), whose sum is σ = 5915669760. Its totient is φ = 729630720.

The previous prime is 2221120001. The next prime is 2221120043. The reversal of 2221120032 is 2300211222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 2221119993 and 2221120020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2437657 + ... + 2438567.

It is an arithmetic number, because the mean of its divisors is an integer number (61621560).

Almost surely, 2^2221120032 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 2221120032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2957834880).

2221120032 is an abundant number, since it is smaller than the sum of its proper divisors (3694549728).

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

2221120032 is a wasteful number, since it uses less digits than its factorization.

2221120032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2221120032 is about 47128.7601364602. The cubic root of 2221120032 is about 1304.7400982690.

Adding to 2221120032 its reverse (2300211222), we get a palindrome (4521331254).

The spelling of 2221120032 in words is "two billion, two hundred twenty-one million, one hundred twenty thousand, thirty-two".