212761159771 has 2 divisors, whose sum is σ = 212761159772. Its totient is φ = 212761159770.

The previous prime is 212761159769. The next prime is 212761159813. The reversal of 212761159771 is 177951167212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212761159771 - 2¹ = 212761159769 is a prime.

It is a super-2 number, since 2×212761159771² (a number of 23 digits) contains 22 as substring.

Together with 212761159769, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (212761159711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106380579885 + 106380579886.

It is an arithmetic number, because the mean of its divisors is an integer number (106380579886).

Almost surely, 2^212761159771 is an apocalyptic number.

212761159771 is a deficient number, since it is larger than the sum of its proper divisors (1).

212761159771 is an equidigital number, since it uses as much as digits as its factorization.

212761159771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 370440, while the sum is 49.

The spelling of 212761159771 in words is "two hundred twelve billion, seven hundred sixty-one million, one hundred fifty-nine thousand, seven hundred seventy-one".