212009034971 has 2 divisors, whose sum is σ = 212009034972. Its totient is φ = 212009034970.

The previous prime is 212009034943. The next prime is 212009035033. The reversal of 212009034971 is 179430900212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212009034971 is a prime.

It is not a weakly prime, because it can be changed into another prime (212009034371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106004517485 + 106004517486.

It is an arithmetic number, because the mean of its divisors is an integer number (106004517486).

Almost surely, 2^212009034971 is an apocalyptic number.

212009034971 is a deficient number, since it is larger than the sum of its proper divisors (1).

212009034971 is an equidigital number, since it uses as much as digits as its factorization.

212009034971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 212009034971 in words is "two hundred twelve billion, nine million, thirty-four thousand, nine hundred seventy-one".