2220512331 has 4 divisors (see below), whose sum is σ = 2960683112. Its totient is φ = 1480341552.

The previous prime is 2220512309. The next prime is 2220512369. The reversal of 2220512331 is 1332150222.

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

It is not a de Polignac number, because 2220512331 - 2⁶ = 2220512267 is a prime.

It is a super-2 number, since 2×2220512331² = 9861350024246107122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220512298 and 2220512307.

It is not an unprimeable number, because it can be changed into a prime (2220511331) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 370085386 + ... + 370085391.

It is an arithmetic number, because the mean of its divisors is an integer number (740170778).

Almost surely, 2^2220512331 is an apocalyptic number.

2220512331 is a deficient number, since it is larger than the sum of its proper divisors (740170781).

2220512331 is an equidigital number, since it uses as much as digits as its factorization.

2220512331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740170780.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2220512331 is about 47122.3124538684. The cubic root of 2220512331 is about 1304.6210946171.

Adding to 2220512331 its reverse (1332150222), we get a palindrome (3552662553).

The spelling of 2220512331 in words is "two billion, two hundred twenty million, five hundred twelve thousand, three hundred thirty-one".