12210100666 has 16 divisors (see below), whose sum is σ = 19770480000. Its totient is φ = 5638246768.

The previous prime is 12210100601. The next prime is 12210100673. The reversal of 12210100666 is 66600101221.

It is a self number, because there is not a number n which added to its sum of digits gives 12210100666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4575166 + ... + 4577833.

It is an arithmetic number, because the mean of its divisors is an integer number (1235655000).

Almost surely, 2^12210100666 is an apocalyptic number.

12210100666 is a deficient number, since it is larger than the sum of its proper divisors (7560379334).

12210100666 is a wasteful number, since it uses less digits than its factorization.

12210100666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9153053.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 12210100666 its reverse (66600101221), we get a palindrome (78810201887).

The spelling of 12210100666 in words is "twelve billion, two hundred ten million, one hundred thousand, six hundred sixty-six".