2220313331 has 4 divisors (see below), whose sum is σ = 2227317792. Its totient is φ = 2213308872.

The previous prime is 2220313297. The next prime is 2220313363. The reversal of 2220313331 is 1333130222.

2220313331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220313331 is a prime.

It is a super-2 number, since 2×2220313331² = 9859582575632631122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220313391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3501755 + ... + 3502388.

It is an arithmetic number, because the mean of its divisors is an integer number (556829448).

Almost surely, 2^2220313331 is an apocalyptic number.

2220313331 is a deficient number, since it is larger than the sum of its proper divisors (7004461).

2220313331 is an equidigital number, since it uses as much as digits as its factorization.

2220313331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7004460.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 2220313331 is about 47120.2008803019. The cubic root of 2220313331 is about 1304.5821205253.

Adding to 2220313331 its reverse (1333130222), we get a palindrome (3553443553).

The spelling of 2220313331 in words is "two billion, two hundred twenty million, three hundred thirteen thousand, three hundred thirty-one".