12100666000 has 40 divisors (see below), whose sum is σ = 29259415224. Its totient is φ = 4840265600.

The previous prime is 12100665979. The next prime is 12100666001. The reversal of 12100666000 is 66600121.

It can be written as a sum of positive squares in 4 ways, for example, as 134931456 + 11965734544 = 11616^2 + 109388^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×12100666000² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12100666001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3023167 + ... + 3027166.

Almost surely, 2^12100666000 is an apocalyptic number.

12100666000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100666000 is an abundant number, since it is smaller than the sum of its proper divisors (17158749224).

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

12100666000 is an equidigital number, since it uses as much as digits as its factorization.

12100666000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050356 (or 6050340 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 12100666000 in words is "twelve billion, one hundred million, six hundred sixty-six thousand".