10212120011047 has 2 divisors, whose sum is σ = 10212120011048. Its totient is φ = 10212120011046.

The previous prime is 10212120011011. The next prime is 10212120011111. The reversal of 10212120011047 is 74011002121201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10212120011047 - 2⁴³ = 1416026988839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10212120012047) 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, 5106060005523 + 5106060005524.

It is an arithmetic number, because the mean of its divisors is an integer number (5106060005524).

Almost surely, 2^{10212120011047} is an apocalyptic number.

10212120011047 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212120011047 is an equidigital number, since it uses as much as digits as its factorization.

10212120011047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 10212120011047 its reverse (74011002121201), we get a palindrome (84223122132248).

The spelling of 10212120011047 in words is "ten trillion, two hundred twelve billion, one hundred twenty million, eleven thousand, forty-seven".