212222212114321 has 2 divisors, whose sum is σ = 212222212114322. Its totient is φ = 212222212114320.

The previous prime is 212222212114223. The next prime is 212222212114349. The reversal of 212222212114321 is 123411212222212.

It is an a-pointer prime, because the next prime (212222212114349) can be obtained adding 212222212114321 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166336761859921 + 45885450254400 = 12897161^2 + 6773880^2 .

It is a cyclic number.

It is not a de Polignac number, because 212222212114321 - 2⁹ = 212222212113809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212222212114321.

It is not a weakly prime, because it can be changed into another prime (212222212111321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106111106057160 + 106111106057161.

It is an arithmetic number, because the mean of its divisors is an integer number (106111106057161).

Almost surely, 2^{212222212114321} is an apocalyptic number.

It is an amenable number.

212222212114321 is a deficient number, since it is larger than the sum of its proper divisors (1).

212222212114321 is an equidigital number, since it uses as much as digits as its factorization.

212222212114321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 28.

Adding to 212222212114321 its reverse (123411212222212), we get a palindrome (335633424336533).

The spelling of 212222212114321 in words is "two hundred twelve trillion, two hundred twenty-two billion, two hundred twelve million, one hundred fourteen thousand, three hundred twenty-one".