1271097039612 has 24 divisors (see below), whose sum is σ = 3001626746496. Its totient is φ = 418594205488.

The previous prime is 1271097039599. The next prime is 1271097039671. The reversal of 1271097039612 is 2169307901721.

It is a super-2 number, since 2×1271097039612² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638099928 + ... + 638101919.

It is an arithmetic number, because the mean of its divisors is an integer number (125067781104).

Almost surely, 2^{1271097039612} is an apocalyptic number.

1271097039612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1271097039612 is an abundant number, since it is smaller than the sum of its proper divisors (1730529706884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1271097039612 is a wasteful number, since it uses less digits than its factorization.

1271097039612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276201937 (or 1276201935 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 48.

The spelling of 1271097039612 in words is "one trillion, two hundred seventy-one billion, ninety-seven million, thirty-nine thousand, six hundred twelve".