1222323229 has 2 divisors, whose sum is σ = 1222323230. Its totient is φ = 1222323228.

The previous prime is 1222323209. The next prime is 1222323253. The reversal of 1222323229 is 9223232221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 817388100 + 404935129 = 28590^2 + 20123^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222323229 - 2⁷ = 1222323101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222323197 and 1222323206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222323209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611161614 + 611161615.

It is an arithmetic number, because the mean of its divisors is an integer number (611161615).

Almost surely, 2^1222323229 is an apocalyptic number.

It is an amenable number.

1222323229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222323229 is an equidigital number, since it uses as much as digits as its factorization.

1222323229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 1222323229 is about 34961.7395019184. The cubic root of 1222323229 is about 1069.2075621607.

The spelling of 1222323229 in words is "one billion, two hundred twenty-two million, three hundred twenty-three thousand, two hundred twenty-nine".