22212329 has 2 divisors, whose sum is σ = 22212330. Its totient is φ = 22212328.

The previous prime is 22212301. The next prime is 22212343. The reversal of 22212329 is 92321222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21114025 + 1098304 = 4595^2 + 1048^2 .

It is a cyclic number.

It is not a de Polignac number, because 22212329 - 2¹⁶ = 22146793 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22212389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106164 + 11106165.

It is an arithmetic number, because the mean of its divisors is an integer number (11106165).

Almost surely, 2^22212329 is an apocalyptic number.

It is an amenable number.

22212329 is a deficient number, since it is larger than the sum of its proper divisors (1).

22212329 is an equidigital number, since it uses as much as digits as its factorization.

22212329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 22212329 is about 4712.9957564165. The cubic root of 22212329 is about 281.1024942404.

The spelling of 22212329 in words is "twenty-two million, two hundred twelve thousand, three hundred twenty-nine".