2221322432 has 56 divisors (see below), whose sum is σ = 5132746656. Its totient is φ = 934023168.

The previous prime is 2221322429. The next prime is 2221322449. The reversal of 2221322432 is 2342231222.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 2221322398 and 2221322407.

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 7 ways as a sum of consecutive naturals, for example, 23033 + ... + 70520.

Almost surely, 2^2221322432 is an apocalyptic number.

It is an amenable number.

2221322432 is an abundant number, since it is smaller than the sum of its proper divisors (2911424224).

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

2221322432 is an equidigital number, since it uses as much as digits as its factorization.

2221322432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93625 (or 93615 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 2221322432 is about 47130.9073963148. The cubic root of 2221322432 is about 1304.7797286313.

Adding to 2221322432 its reverse (2342231222), we get a palindrome (4563553654).

The spelling of 2221322432 in words is "two billion, two hundred twenty-one million, three hundred twenty-two thousand, four hundred thirty-two".