2221330231 has 2 divisors, whose sum is σ = 2221330232. Its totient is φ = 2221330230.

The previous prime is 2221330201. The next prime is 2221330253. The reversal of 2221330231 is 1320331222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2221330231 - 2¹⁷ = 2221199159 is a prime.

It is a super-2 number, since 2×2221330231² = 9868615990309026722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2221330199 and 2221330208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221330201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110665115 + 1110665116.

It is an arithmetic number, because the mean of its divisors is an integer number (1110665116).

Almost surely, 2^2221330231 is an apocalyptic number.

2221330231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221330231 is an equidigital number, since it uses as much as digits as its factorization.

2221330231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2221330231 is about 47130.9901338811. The cubic root of 2221330231 is about 1304.7812556444.

Adding to 2221330231 its reverse (1320331222), we get a palindrome (3541661453).

Subtracting from 2221330231 its reverse (1320331222), we obtain a palindrome (900999009).

The spelling of 2221330231 in words is "two billion, two hundred twenty-one million, three hundred thirty thousand, two hundred thirty-one".