22214429 has 2 divisors, whose sum is σ = 22214430. Its totient is φ = 22214428.

The previous prime is 22214399. The next prime is 22214443. The reversal of 22214429 is 92441222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22108804 + 105625 = 4702^2 + 325^2 .

It is a cyclic number.

It is not a de Polignac number, because 22214429 - 2¹² = 22210333 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22214398 and 22214407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22214449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11107214 + 11107215.

It is an arithmetic number, because the mean of its divisors is an integer number (11107215).

Almost surely, 2^22214429 is an apocalyptic number.

It is an amenable number.

22214429 is a deficient number, since it is larger than the sum of its proper divisors (1).

22214429 is an equidigital number, since it uses as much as digits as its factorization.

22214429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 26.

The square root of 22214429 is about 4713.2185393847. The cubic root of 22214429 is about 281.1113526337. Note that the first 3 decimals are identical.

The spelling of 22214429 in words is "twenty-two million, two hundred fourteen thousand, four hundred twenty-nine".