212212323329 has 2 divisors, whose sum is σ = 212212323330. Its totient is φ = 212212323328.

The previous prime is 212212323307. The next prime is 212212323343. The reversal of 212212323329 is 923323212212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197824800625 + 14387522704 = 444775^2 + 119948^2 .

It is a cyclic number.

It is not a de Polignac number, because 212212323329 - 2³² = 207917356033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212212323295 and 212212323304.

It is not a weakly prime, because it can be changed into another prime (212212323359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106106161664 + 106106161665.

It is an arithmetic number, because the mean of its divisors is an integer number (106106161665).

Almost surely, 2^212212323329 is an apocalyptic number.

It is an amenable number.

212212323329 is a deficient number, since it is larger than the sum of its proper divisors (1).

212212323329 is an equidigital number, since it uses as much as digits as its factorization.

212212323329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 32.

The spelling of 212212323329 in words is "two hundred twelve billion, two hundred twelve million, three hundred twenty-three thousand, three hundred twenty-nine".