1191270272112 has 120 divisors (see below), whose sum is σ = 3341878048080. Its totient is φ = 396141327360.

The previous prime is 1191270272089. The next prime is 1191270272149. The reversal of 1191270272112 is 2112720721911.

1191270272112 is a `hidden beast` number, since 1 + 1 + 9 + 1 + 270 + 272 + 112 = 666.

It is a super-2 number, since 2×1191270272112² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109617303 + ... + 109628169.

It is an arithmetic number, because the mean of its divisors is an integer number (27848983734).

Almost surely, 2^{1191270272112} is an apocalyptic number.

1191270272112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1191270272112 is an abundant number, since it is smaller than the sum of its proper divisors (2150607775968).

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

1191270272112 is a wasteful number, since it uses less digits than its factorization.

1191270272112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12631 (or 12622 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 36.

The spelling of 1191270272112 in words is "one trillion, one hundred ninety-one billion, two hundred seventy million, two hundred seventy-two thousand, one hundred twelve".