22126229 has 2 divisors, whose sum is σ = 22126230. Its totient is φ = 22126228.

The previous prime is 22126211. The next prime is 22126261. The reversal of 22126229 is 92262122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18879025 + 3247204 = 4345^2 + 1802^2 .

It is a cyclic number.

It is not a de Polignac number, because 22126229 - 2¹⁶ = 22060693 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22126198 and 22126207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22126289) 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, 11063114 + 11063115.

It is an arithmetic number, because the mean of its divisors is an integer number (11063115).

Almost surely, 2^22126229 is an apocalyptic number.

It is an amenable number.

22126229 is a deficient number, since it is larger than the sum of its proper divisors (1).

22126229 is an equidigital number, since it uses as much as digits as its factorization.

22126229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 26.

The square root of 22126229 is about 4703.8525699686. The cubic root of 22126229 is about 280.7388183697.

The spelling of 22126229 in words is "twenty-two million, one hundred twenty-six thousand, two hundred twenty-nine".