2221220032 has 28 divisors (see below), whose sum is σ = 4599377136. Its totient is φ = 1062321920.

The previous prime is 2221219991. The next prime is 2221220039. The reversal of 2221220032 is 2300221222.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2221219988 and 2221220015.

It is not an unprimeable number, because it can be changed into a prime (2221220039) 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, 753019 + ... + 755962.

Almost surely, 2^2221220032 is an apocalyptic number.

It is an amenable number.

2221220032 is an abundant number, since it is smaller than the sum of its proper divisors (2378157104).

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

2221220032 is a wasteful number, since it uses less digits than its factorization.

2221220032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509016 (or 1509006 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2221220032 is about 47129.8210478249. The cubic root of 2221220032 is about 1304.7596787884.

Adding to 2221220032 its reverse (2300221222), we get a palindrome (4521441254).

The spelling of 2221220032 in words is "two billion, two hundred twenty-one million, two hundred twenty thousand, thirty-two".