1217271106120 has 16 divisors (see below), whose sum is σ = 2738859988860. Its totient is φ = 486908442432.

The previous prime is 1217271106109. The next prime is 1217271106151. The reversal of 1217271106120 is 216011727121.

It can be written as a sum of positive squares in 2 ways, for example, as 1167337628356 + 49933477764 = 1080434^2 + 223458^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15215888787 + ... + 15215888866.

Almost surely, 2^{1217271106120} is an apocalyptic number.

1217271106120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1217271106120 is an abundant number, since it is smaller than the sum of its proper divisors (1521588882740).

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

1217271106120 is a wasteful number, since it uses less digits than its factorization.

1217271106120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30431777664 (or 30431777660 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 31.

The spelling of 1217271106120 in words is "one trillion, two hundred seventeen billion, two hundred seventy-one million, one hundred six thousand, one hundred twenty".