22040771 has 2 divisors, whose sum is σ = 22040772. Its totient is φ = 22040770.

The previous prime is 22040749. The next prime is 22040773. The reversal of 22040771 is 17704022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22040771 is a prime.

Together with 22040773, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22040773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11020385 + 11020386.

It is an arithmetic number, because the mean of its divisors is an integer number (11020386).

Almost surely, 2^22040771 is an apocalyptic number.

22040771 is a deficient number, since it is larger than the sum of its proper divisors (1).

22040771 is an equidigital number, since it uses as much as digits as its factorization.

22040771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 22040771 is about 4694.7599512648. The cubic root of 22040771 is about 280.3769201050.

Adding to 22040771 its reverse (17704022), we get a palindrome (39744793).

The spelling of 22040771 in words is "twenty-two million, forty thousand, seven hundred seventy-one".