212120211222047 has 2 divisors, whose sum is σ = 212120211222048. Its totient is φ = 212120211222046.

The previous prime is 212120211222019. The next prime is 212120211222071. The reversal of 212120211222047 is 740222112021212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212120211222047 - 2⁶ = 212120211221983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212120211222097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106060105611023 + 106060105611024.

It is an arithmetic number, because the mean of its divisors is an integer number (106060105611024).

Almost surely, 2^{212120211222047} is an apocalyptic number.

212120211222047 is a deficient number, since it is larger than the sum of its proper divisors (1).

212120211222047 is an equidigital number, since it uses as much as digits as its factorization.

212120211222047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 29.

Adding to 212120211222047 its reverse (740222112021212), we get a palindrome (952342323243259).

The spelling of 212120211222047 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred eleven million, two hundred twenty-two thousand, forty-seven".