210212011979 has 2 divisors, whose sum is σ = 210212011980. Its totient is φ = 210212011978.

The previous prime is 210212011967. The next prime is 210212012053. The reversal of 210212011979 is 979110212012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210212011979 is a prime.

It is not a weakly prime, because it can be changed into another prime (210212011379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105106005989 + 105106005990.

It is an arithmetic number, because the mean of its divisors is an integer number (105106005990).

Almost surely, 2^210212011979 is an apocalyptic number.

210212011979 is a deficient number, since it is larger than the sum of its proper divisors (1).

210212011979 is an equidigital number, since it uses as much as digits as its factorization.

210212011979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 35.

The spelling of 210212011979 in words is "two hundred ten billion, two hundred twelve million, eleven thousand, nine hundred seventy-nine".