212488714721 has 2 divisors, whose sum is σ = 212488714722. Its totient is φ = 212488714720.

The previous prime is 212488714717. The next prime is 212488714723. The reversal of 212488714721 is 127417884212.

212488714721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138708574096 + 73780140625 = 372436^2 + 271625^2 .

It is a cyclic number.

It is not a de Polignac number, because 212488714721 - 2² = 212488714717 is a prime.

Together with 212488714723, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212488714723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106244357360 + 106244357361.

It is an arithmetic number, because the mean of its divisors is an integer number (106244357361).

Almost surely, 2^212488714721 is an apocalyptic number.

It is an amenable number.

212488714721 is a deficient number, since it is larger than the sum of its proper divisors (1).

212488714721 is an equidigital number, since it uses as much as digits as its factorization.

212488714721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 401408, while the sum is 47.

The spelling of 212488714721 in words is "two hundred twelve billion, four hundred eighty-eight million, seven hundred fourteen thousand, seven hundred twenty-one".