212121230230333 has 2 divisors, whose sum is σ = 212121230230334. Its totient is φ = 212121230230332.

The previous prime is 212121230230313. The next prime is 212121230230337. The reversal of 212121230230333 is 333032032121212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110575361692324 + 101545868538009 = 10515482^2 + 10076997^2 .

It is a cyclic number.

It is not a de Polignac number, because 212121230230333 - 2¹³ = 212121230222141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212121230230337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106060615115166 + 106060615115167.

It is an arithmetic number, because the mean of its divisors is an integer number (106060615115167).

Almost surely, 2^{212121230230333} is an apocalyptic number.

It is an amenable number.

212121230230333 is a deficient number, since it is larger than the sum of its proper divisors (1).

212121230230333 is an equidigital number, since it uses as much as digits as its factorization.

212121230230333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 212121230230333 its reverse (333032032121212), we get a palindrome (545153262351545).

The spelling of 212121230230333 in words is "two hundred twelve trillion, one hundred twenty-one billion, two hundred thirty million, two hundred thirty thousand, three hundred thirty-three".