212300032222021 has 2 divisors, whose sum is σ = 212300032222022. Its totient is φ = 212300032222020.

The previous prime is 212300032222007. The next prime is 212300032222039. The reversal of 212300032222021 is 120222230003212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118189273077121 + 94110759144900 = 10871489^2 + 9701070^2 .

It is a cyclic number.

It is not a de Polignac number, because 212300032222021 - 2⁵ = 212300032221989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212300032221983 and 212300032222001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212300132222021) 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, 106150016111010 + 106150016111011.

It is an arithmetic number, because the mean of its divisors is an integer number (106150016111011).

Almost surely, 2^{212300032222021} is an apocalyptic number.

It is an amenable number.

212300032222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

212300032222021 is an equidigital number, since it uses as much as digits as its factorization.

212300032222021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 212300032222021 its reverse (120222230003212), we get a palindrome (332522262225233).

The spelling of 212300032222021 in words is "two hundred twelve trillion, three hundred billion, thirty-two million, two hundred twenty-two thousand, twenty-one".