2221332320 has 48 divisors (see below), whose sum is σ = 5311157040. Its totient is φ = 877822464.

The previous prime is 2221332307. The next prime is 2221332371. The reversal of 2221332320 is 232331222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2221332292 and 2221332301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70355 + ... + 96914.

It is an arithmetic number, because the mean of its divisors is an integer number (110649105).

Almost surely, 2^2221332320 is an apocalyptic number.

2221332320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221332320 is an abundant number, since it is smaller than the sum of its proper divisors (3089824720).

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

2221332320 is a wasteful number, since it uses less digits than its factorization.

2221332320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167367 (or 167359 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2221332320 is about 47131.0122955151. The cubic root of 2221332320 is about 1304.7816646616.

Adding to 2221332320 its reverse (232331222), we get a palindrome (2453663542).

The spelling of 2221332320 in words is "two billion, two hundred twenty-one million, three hundred thirty-two thousand, three hundred twenty".