212120030179 has 2 divisors, whose sum is σ = 212120030180. Its totient is φ = 212120030178.

The previous prime is 212120030149. The next prime is 212120030249. The reversal of 212120030179 is 971030021212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212120030179 - 2¹³ = 212120021987 is a prime.

It is not a weakly prime, because it can be changed into another prime (212120030149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106060015089 + 106060015090.

It is an arithmetic number, because the mean of its divisors is an integer number (106060015090).

Almost surely, 2^212120030179 is an apocalyptic number.

212120030179 is a deficient number, since it is larger than the sum of its proper divisors (1).

212120030179 is an equidigital number, since it uses as much as digits as its factorization.

212120030179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 212120030179 in words is "two hundred twelve billion, one hundred twenty million, thirty thousand, one hundred seventy-nine".