211122019113947 has 2 divisors, whose sum is σ = 211122019113948. Its totient is φ = 211122019113946.

The previous prime is 211122019113931. The next prime is 211122019113997. The reversal of 211122019113947 is 749311910221112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211122019113947 - 2⁴ = 211122019113931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211122019113898 and 211122019113907.

It is not a weakly prime, because it can be changed into another prime (211122019113997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105561009556973 + 105561009556974.

It is an arithmetic number, because the mean of its divisors is an integer number (105561009556974).

Almost surely, 2^{211122019113947} is an apocalyptic number.

211122019113947 is a deficient number, since it is larger than the sum of its proper divisors (1).

211122019113947 is an equidigital number, since it uses as much as digits as its factorization.

211122019113947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 44.

The spelling of 211122019113947 in words is "two hundred eleven trillion, one hundred twenty-two billion, nineteen million, one hundred thirteen thousand, nine hundred forty-seven".