212112031177 has 2 divisors, whose sum is σ = 212112031178. Its totient is φ = 212112031176.

The previous prime is 212112031169. The next prime is 212112031213. The reversal of 212112031177 is 771130211212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187013867401 + 25098163776 = 432451^2 + 158424^2 .

It is a cyclic number.

It is not a de Polignac number, because 212112031177 - 2³ = 212112031169 is a prime.

It is not a weakly prime, because it can be changed into another prime (212112031127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106056015588 + 106056015589.

It is an arithmetic number, because the mean of its divisors is an integer number (106056015589).

Almost surely, 2^212112031177 is an apocalyptic number.

It is an amenable number.

212112031177 is a deficient number, since it is larger than the sum of its proper divisors (1).

212112031177 is an equidigital number, since it uses as much as digits as its factorization.

212112031177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 28.

Adding to 212112031177 its reverse (771130211212), we get a palindrome (983242242389).

The spelling of 212112031177 in words is "two hundred twelve billion, one hundred twelve million, thirty-one thousand, one hundred seventy-seven".