2220310231 has 4 divisors (see below), whose sum is σ = 2220421264. Its totient is φ = 2220199200.

The previous prime is 2220310217. The next prime is 2220310249. The reversal of 2220310231 is 1320130222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2220310231 - 2⁹ = 2220309719 is a prime.

It is a super-2 number, since 2×2220310231² = 9859555043766546722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220310331) 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, 16275 + ... + 68596.

It is an arithmetic number, because the mean of its divisors is an integer number (555105316).

Almost surely, 2^2220310231 is an apocalyptic number.

2220310231 is a deficient number, since it is larger than the sum of its proper divisors (111033).

2220310231 is an equidigital number, since it uses as much as digits as its factorization.

2220310231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111032.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2220310231 is about 47120.1679856938. The cubic root of 2220310231 is about 1304.5815133728.

Adding to 2220310231 its reverse (1320130222), we get a palindrome (3540440453).

Subtracting from 2220310231 its reverse (1320130222), we obtain a square (900180009 = 30003²).

The spelling of 2220310231 in words is "two billion, two hundred twenty million, three hundred ten thousand, two hundred thirty-one".