2221223320 has 32 divisors (see below), whose sum is σ = 5001711120. Its totient is φ = 887785600.

The previous prime is 2221223309. The next prime is 2221223359. The reversal of 2221223320 is 233221222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30699 + ... + 73381.

Almost surely, 2^2221223320 is an apocalyptic number.

2221223320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221223320 is an abundant number, since it is smaller than the sum of its proper divisors (2780487800).

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

2221223320 is a wasteful number, since it uses less digits than its factorization.

2221223320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43995 (or 43991 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2221223320 is about 47129.8559301851. The cubic root of 2221223320 is about 1304.7603225859.

Adding to 2221223320 its reverse (233221222), we get a palindrome (2454444542).

The spelling of 2221223320 in words is "two billion, two hundred twenty-one million, two hundred twenty-three thousand, three hundred twenty".