1171212086271 has 8 divisors (see below), whose sum is σ = 1611990828544. Its totient is φ = 755620700760.

The previous prime is 1171212086263. The next prime is 1171212086321. The reversal of 1171212086271 is 1726802121711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1171212086271 - 2³ = 1171212086263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171212088271) 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 in 7 ways as a sum of consecutive naturals, for example, 6296839081 + ... + 6296839266.

It is an arithmetic number, because the mean of its divisors is an integer number (201498853568).

Almost surely, 2^{1171212086271} is an apocalyptic number.

1171212086271 is a deficient number, since it is larger than the sum of its proper divisors (440778742273).

1171212086271 is a wasteful number, since it uses less digits than its factorization.

1171212086271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12593678381.

The product of its (nonzero) digits is 18816, while the sum is 39.

The spelling of 1171212086271 in words is "one trillion, one hundred seventy-one billion, two hundred twelve million, eighty-six thousand, two hundred seventy-one".