101166012 has 18 divisors (see below), whose sum is σ = 255725288. Its totient is φ = 33721992.

The previous prime is 101165993. The next prime is 101166019. The reversal of 101166012 is 210661101.

101166012 is a `hidden beast` number, since 1 + 0 + 1 + 1 + 660 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101166019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1405048 + ... + 1405119.

Almost surely, 2^101166012 is an apocalyptic number.

101166012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101166012 is an abundant number, since it is smaller than the sum of its proper divisors (154559276).

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

101166012 is a wasteful number, since it uses less digits than its factorization.

101166012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810177 (or 2810172 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 101166012 is about 10058.1316356469. The cubic root of 101166012 is about 465.9559660480.

It can be divided in two parts, 10116601 and 2, that multiplied together give a palindrome (20233202).

The spelling of 101166012 in words is "one hundred one million, one hundred sixty-six thousand, twelve".