100012181266 has 16 divisors (see below), whose sum is σ = 157920235200. Its totient is φ = 47372311728.

The previous prime is 100012181221. The next prime is 100012181267. The reversal of 100012181266 is 662181210001.

It is not an unprimeable number, because it can be changed into a prime (100012181267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1585315 + ... + 1647193.

It is an arithmetic number, because the mean of its divisors is an integer number (9870014700).

Almost surely, 2^100012181266 is an apocalyptic number.

100012181266 is a deficient number, since it is larger than the sum of its proper divisors (57908053934).

100012181266 is a wasteful number, since it uses less digits than its factorization.

100012181266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104433.

The product of its (nonzero) digits is 1152, while the sum is 28.

Adding to 100012181266 its reverse (662181210001), we get a palindrome (762193391267).

The spelling of 100012181266 in words is "one hundred billion, twelve million, one hundred eighty-one thousand, two hundred sixty-six".