2221230320 has 40 divisors (see below), whose sum is σ = 5202082224. Its totient is φ = 882002432.

The previous prime is 2221230311. The next prime is 2221230377. The reversal of 2221230320 is 230321222.

It is a tau number, because it is divible by the number of its divisors (40).

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, 90374 + ... + 112293.

Almost surely, 2^2221230320 is an apocalyptic number.

2221230320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221230320 is an abundant number, since it is smaller than the sum of its proper divisors (2980851904).

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

2221230320 is a wasteful number, since it uses less digits than its factorization.

2221230320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202817 (or 202811 counting only the distinct ones).

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

The square root of 2221230320 is about 47129.9301930313. The cubic root of 2221230320 is about 1304.7616931989.

Adding to 2221230320 its reverse (230321222), we get a palindrome (2451551542).

The spelling of 2221230320 in words is "two billion, two hundred twenty-one million, two hundred thirty thousand, three hundred twenty".