1166112017212 has 12 divisors (see below), whose sum is σ = 2056273863336. Its totient is φ = 578605199120.

The previous prime is 1166112017179. The next prime is 1166112017219. The reversal of 1166112017212 is 2127102116611.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166112017219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112701783 + ... + 1112702830.

It is an arithmetic number, because the mean of its divisors is an integer number (171356155278).

Almost surely, 2^{1166112017212} is an apocalyptic number.

It is an amenable number.

1166112017212 is a deficient number, since it is larger than the sum of its proper divisors (890161846124).

1166112017212 is a wasteful number, since it uses less digits than its factorization.

1166112017212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225404748 (or 2225404746 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 31.

The spelling of 1166112017212 in words is "one trillion, one hundred sixty-six billion, one hundred twelve million, seventeen thousand, two hundred twelve".