2231220307 has 2 divisors, whose sum is σ = 2231220308. Its totient is φ = 2231220306.

The previous prime is 2231220283. The next prime is 2231220323. The reversal of 2231220307 is 7030221322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2231220307 is a prime.

It is a super-3 number, since 3×2231220307³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2231220337) 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, 1115610153 + 1115610154.

It is an arithmetic number, because the mean of its divisors is an integer number (1115610154).

Almost surely, 2^2231220307 is an apocalyptic number.

2231220307 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231220307 is an equidigital number, since it uses as much as digits as its factorization.

2231220307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 2231220307 is about 47235.7947641405. The cubic root of 2231220307 is about 1306.7148239994.

Adding to 2231220307 its reverse (7030221322), we get a palindrome (9261441629).

The spelling of 2231220307 in words is "two billion, two hundred thirty-one million, two hundred twenty thousand, three hundred seven".