212554712771 has 2 divisors, whose sum is σ = 212554712772. Its totient is φ = 212554712770.

The previous prime is 212554712731. The next prime is 212554712837. The reversal of 212554712771 is 177217455212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212554712771 is a prime.

It is not a weakly prime, because it can be changed into another prime (212554712731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106277356385 + 106277356386.

It is an arithmetic number, because the mean of its divisors is an integer number (106277356386).

Almost surely, 2^212554712771 is an apocalyptic number.

212554712771 is a deficient number, since it is larger than the sum of its proper divisors (1).

212554712771 is an equidigital number, since it uses as much as digits as its factorization.

212554712771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 274400, while the sum is 44.

The spelling of 212554712771 in words is "two hundred twelve billion, five hundred fifty-four million, seven hundred twelve thousand, seven hundred seventy-one".