212021748067 has 2 divisors, whose sum is σ = 212021748068. Its totient is φ = 212021748066.

The previous prime is 212021748047. The next prime is 212021748097. The reversal of 212021748067 is 760847120212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212021748067 is a prime.

It is not a weakly prime, because it can be changed into another prime (212021748007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010874033 + 106010874034.

It is an arithmetic number, because the mean of its divisors is an integer number (106010874034).

Almost surely, 2^212021748067 is an apocalyptic number.

212021748067 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021748067 is an equidigital number, since it uses as much as digits as its factorization.

212021748067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75264, while the sum is 40.

Adding to 212021748067 its reverse (760847120212), we get a palindrome (972868868279).

The spelling of 212021748067 in words is "two hundred twelve billion, twenty-one million, seven hundred forty-eight thousand, sixty-seven".