212221233021047 has 2 divisors, whose sum is σ = 212221233021048. Its totient is φ = 212221233021046.

The previous prime is 212221233020989. The next prime is 212221233021131. The reversal of 212221233021047 is 740120332122212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212221233021047 - 2⁶ = 212221233020983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212221293021047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110616510523 + 106110616510524.

It is an arithmetic number, because the mean of its divisors is an integer number (106110616510524).

Almost surely, 2^{212221233021047} is an apocalyptic number.

212221233021047 is a deficient number, since it is larger than the sum of its proper divisors (1).

212221233021047 is an equidigital number, since it uses as much as digits as its factorization.

212221233021047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 32.

Adding to 212221233021047 its reverse (740120332122212), we get a palindrome (952341565143259).

The spelling of 212221233021047 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred thirty-three million, twenty-one thousand, forty-seven".