212102012347 has 2 divisors, whose sum is σ = 212102012348. Its totient is φ = 212102012346.

The previous prime is 212102012293. The next prime is 212102012351. The reversal of 212102012347 is 743210201212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212102012347 - 2¹¹ = 212102010299 is a prime.

It is not a weakly prime, because it can be changed into another prime (212102012047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106051006173 + 106051006174.

It is an arithmetic number, because the mean of its divisors is an integer number (106051006174).

Almost surely, 2^212102012347 is an apocalyptic number.

212102012347 is a deficient number, since it is larger than the sum of its proper divisors (1).

212102012347 is an equidigital number, since it uses as much as digits as its factorization.

212102012347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 212102012347 its reverse (743210201212), we get a palindrome (955312213559).

The spelling of 212102012347 in words is "two hundred twelve billion, one hundred two million, twelve thousand, three hundred forty-seven".