212120211967 has 2 divisors, whose sum is σ = 212120211968. Its totient is φ = 212120211966.

The previous prime is 212120211913. The next prime is 212120212033. The reversal of 212120211967 is 769112021212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212120211967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212120211067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106060105983 + 106060105984.

It is an arithmetic number, because the mean of its divisors is an integer number (106060105984).

Almost surely, 2^212120211967 is an apocalyptic number.

212120211967 is a deficient number, since it is larger than the sum of its proper divisors (1).

212120211967 is an equidigital number, since it uses as much as digits as its factorization.

212120211967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 212120211967 in words is "two hundred twelve billion, one hundred twenty million, two hundred eleven thousand, nine hundred sixty-seven".