22214771 has 2 divisors, whose sum is σ = 22214772. Its totient is φ = 22214770.

The previous prime is 22214749. The next prime is 22214779. The reversal of 22214771 is 17741222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22214771 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22214771.

It is not a weakly prime, because it can be changed into another prime (22214779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11107385 + 11107386.

It is an arithmetic number, because the mean of its divisors is an integer number (11107386).

Almost surely, 2^22214771 is an apocalyptic number.

22214771 is a deficient number, since it is larger than the sum of its proper divisors (1).

22214771 is an equidigital number, since it uses as much as digits as its factorization.

22214771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1568, while the sum is 26.

The square root of 22214771 is about 4713.2548201853. The cubic root of 22214771 is about 281.1127952334.

Adding to 22214771 its reverse (17741222), we get a palindrome (39955993).

The spelling of 22214771 in words is "twenty-two million, two hundred fourteen thousand, seven hundred seventy-one".