212110110009979 has 2 divisors, whose sum is σ = 212110110009980. Its totient is φ = 212110110009978.

The previous prime is 212110110009977. The next prime is 212110110010063. The reversal of 212110110009979 is 979900011011212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212110110009979 - 2¹ = 212110110009977 is a prime.

Together with 212110110009977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (212110110009977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106055055004989 + 106055055004990.

It is an arithmetic number, because the mean of its divisors is an integer number (106055055004990).

Almost surely, 2^{212110110009979} is an apocalyptic number.

212110110009979 is a deficient number, since it is larger than the sum of its proper divisors (1).

212110110009979 is an equidigital number, since it uses as much as digits as its factorization.

212110110009979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 43.

The spelling of 212110110009979 in words is "two hundred twelve trillion, one hundred ten billion, one hundred ten million, nine thousand, nine hundred seventy-nine".