22216769 has 2 divisors, whose sum is σ = 22216770. Its totient is φ = 22216768.

The previous prime is 22216751. The next prime is 22216829. The reversal of 22216769 is 96761222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20367169 + 1849600 = 4513^2 + 1360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22216769 is a prime.

It is a super-2 number, since 2×22216769² = 987169649598722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22246769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11108384 + 11108385.

It is an arithmetic number, because the mean of its divisors is an integer number (11108385).

Almost surely, 2^22216769 is an apocalyptic number.

It is an amenable number.

22216769 is a deficient number, since it is larger than the sum of its proper divisors (1).

22216769 is an equidigital number, since it uses as much as digits as its factorization.

22216769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 22216769 is about 4713.4667708599. The cubic root of 22216769 is about 281.1212227571.

The spelling of 22216769 in words is "twenty-two million, two hundred sixteen thousand, seven hundred sixty-nine".