212321120233 has 2 divisors, whose sum is σ = 212321120234. Its totient is φ = 212321120232.

The previous prime is 212321120227. The next prime is 212321120261. The reversal of 212321120233 is 332021123212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168064741849 + 44256378384 = 409957^2 + 210372^2 .

It is a cyclic number.

It is not a de Polignac number, because 212321120233 - 2⁹ = 212321119721 is a prime.

It is not a weakly prime, because it can be changed into another prime (212321120213) 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, 106160560116 + 106160560117.

It is an arithmetic number, because the mean of its divisors is an integer number (106160560117).

Almost surely, 2^212321120233 is an apocalyptic number.

It is an amenable number.

212321120233 is a deficient number, since it is larger than the sum of its proper divisors (1).

212321120233 is an equidigital number, since it uses as much as digits as its factorization.

212321120233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212321120233 its reverse (332021123212), we get a palindrome (544342243445).

The spelling of 212321120233 in words is "two hundred twelve billion, three hundred twenty-one million, one hundred twenty thousand, two hundred thirty-three".