22204229 has 2 divisors, whose sum is σ = 22204230. Its totient is φ = 22204228.

The previous prime is 22204219. The next prime is 22204241. The reversal of 22204229 is 92240222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21390625 + 813604 = 4625^2 + 902^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22204229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22204219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11102114 + 11102115.

It is an arithmetic number, because the mean of its divisors is an integer number (11102115).

Almost surely, 2^22204229 is an apocalyptic number.

It is an amenable number.

22204229 is a deficient number, since it is larger than the sum of its proper divisors (1).

22204229 is an equidigital number, since it uses as much as digits as its factorization.

22204229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 22204229 is about 4712.1363520170. The cubic root of 22204229 is about 281.0683209212.

The spelling of 22204229 in words is "twenty-two million, two hundred four thousand, two hundred twenty-nine".