212222659172647 has 2 divisors, whose sum is σ = 212222659172648. Its totient is φ = 212222659172646.

The previous prime is 212222659172633. The next prime is 212222659172683. The reversal of 212222659172647 is 746271956222212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212222659172647 - 2³⁹ = 211672903358759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212222659172591 and 212222659172600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212222659172947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106111329586323 + 106111329586324.

It is an arithmetic number, because the mean of its divisors is an integer number (106111329586324).

Almost surely, 2^{212222659172647} is an apocalyptic number.

212222659172647 is a deficient number, since it is larger than the sum of its proper divisors (1).

212222659172647 is an equidigital number, since it uses as much as digits as its factorization.

212222659172647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20321280, while the sum is 58.

The spelling of 212222659172647 in words is "two hundred twelve trillion, two hundred twenty-two billion, six hundred fifty-nine million, one hundred seventy-two thousand, six hundred forty-seven".