22071307 has 2 divisors, whose sum is σ = 22071308. Its totient is φ = 22071306.

The previous prime is 22071281. The next prime is 22071311. The reversal of 22071307 is 70317022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22071307 - 2²³ = 13682699 is a prime.

It is not a weakly prime, because it can be changed into another prime (22071347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11035653 + 11035654.

It is an arithmetic number, because the mean of its divisors is an integer number (11035654).

Almost surely, 2^22071307 is an apocalyptic number.

22071307 is a deficient number, since it is larger than the sum of its proper divisors (1).

22071307 is an equidigital number, since it uses as much as digits as its factorization.

22071307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 22071307 is about 4698.0109620987. The cubic root of 22071307 is about 280.5063414523.

Adding to 22071307 its reverse (70317022), we get a palindrome (92388329).

The spelling of 22071307 in words is "twenty-two million, seventy-one thousand, three hundred seven".