212231110021207 has 2 divisors, whose sum is σ = 212231110021208. Its totient is φ = 212231110021206.

The previous prime is 212231110021181. The next prime is 212231110021237. The reversal of 212231110021207 is 702120011132212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212231110021207 - 2⁷ = 212231110021079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212231110021237) 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, 106115555010603 + 106115555010604.

It is an arithmetic number, because the mean of its divisors is an integer number (106115555010604).

Almost surely, 2^{212231110021207} is an apocalyptic number.

212231110021207 is a deficient number, since it is larger than the sum of its proper divisors (1).

212231110021207 is an equidigital number, since it uses as much as digits as its factorization.

212231110021207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 212231110021207 its reverse (702120011132212), we get a palindrome (914351121153419).

The spelling of 212231110021207 in words is "two hundred twelve trillion, two hundred thirty-one billion, one hundred ten million, twenty-one thousand, two hundred seven".