212020210247 has 2 divisors, whose sum is σ = 212020210248. Its totient is φ = 212020210246.

The previous prime is 212020210177. The next prime is 212020210279. The reversal of 212020210247 is 742012020212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212020210247 - 2⁸ = 212020209991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212020200247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010105123 + 106010105124.

It is an arithmetic number, because the mean of its divisors is an integer number (106010105124).

Almost surely, 2^212020210247 is an apocalyptic number.

212020210247 is a deficient number, since it is larger than the sum of its proper divisors (1).

212020210247 is an equidigital number, since it uses as much as digits as its factorization.

212020210247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 23.

Adding to 212020210247 its reverse (742012020212), we get a palindrome (954032230459).

The spelling of 212020210247 in words is "two hundred twelve billion, twenty million, two hundred ten thousand, two hundred forty-seven".