2221023320 has 32 divisors (see below), whose sum is σ = 4998946320. Its totient is φ = 888117120.

The previous prime is 2221023283. The next prime is 2221023331. The reversal of 2221023320 is 233201222.

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, 146915 + ... + 161325.

Almost surely, 2^2221023320 is an apocalyptic number.

2221023320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221023320 is an abundant number, since it is smaller than the sum of its proper divisors (2777923000).

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

2221023320 is a wasteful number, since it uses less digits than its factorization.

2221023320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18275 (or 18271 counting only the distinct ones).

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

The square root of 2221023320 is about 47127.7340851435. The cubic root of 2221023320 is about 1304.7211609980.

Adding to 2221023320 its reverse (233201222), we get a palindrome (2454224542).

The spelling of 2221023320 in words is "two billion, two hundred twenty-one million, twenty-three thousand, three hundred twenty".