1271229241685 has 16 divisors (see below), whose sum is σ = 1714246257024. Its totient is φ = 897938513472.

The previous prime is 1271229241669. The next prime is 1271229241717. The reversal of 1271229241685 is 5861429221721.

It is not a de Polignac number, because 1271229241685 - 2⁴ = 1271229241669 is a prime.

It is a super-3 number, since 3×1271229241685³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425158787 + ... + 425161776.

It is an arithmetic number, because the mean of its divisors is an integer number (107140391064).

Almost surely, 2^{1271229241685} is an apocalyptic number.

It is an amenable number.

1271229241685 is a deficient number, since it is larger than the sum of its proper divisors (443017015339).

1271229241685 is a wasteful number, since it uses less digits than its factorization.

1271229241685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850320604.

The product of its digits is 967680, while the sum is 50.

The spelling of 1271229241685 in words is "one trillion, two hundred seventy-one billion, two hundred twenty-nine million, two hundred forty-one thousand, six hundred eighty-five".