2230721330 has 16 divisors (see below), whose sum is σ = 4017835224. Its totient is φ = 891724800.

The previous prime is 2230721323. The next prime is 2230721333. The reversal of 2230721330 is 331270322.

It can be written as a sum of positive squares in 4 ways, for example, as 2000683441 + 230037889 = 44729^2 + 15167^2 .

It is a super-3 number, since 3×2230721330³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2230721296 and 2230721305.

It is not an unprimeable number, because it can be changed into a prime (2230721333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53657 + ... + 85676.

Almost surely, 2^2230721330 is an apocalyptic number.

2230721330 is a deficient number, since it is larger than the sum of its proper divisors (1787113894).

2230721330 is a wasteful number, since it uses less digits than its factorization.

2230721330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140941.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 2230721330 is about 47230.5127010072. The cubic root of 2230721330 is about 1306.6174080620.

Adding to 2230721330 its reverse (331270322), we get a palindrome (2561991652).

The spelling of 2230721330 in words is "two billion, two hundred thirty million, seven hundred twenty-one thousand, three hundred thirty".