100001021012112 has 40 divisors (see below), whose sum is σ = 281821059217440. Its totient is φ = 30303339700480.

The previous prime is 100001021012071. The next prime is 100001021012119. The reversal of 100001021012112 is 211210120100001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (100001021012119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94697936037 + ... + 94697937092.

It is an arithmetic number, because the mean of its divisors is an integer number (7045526480436).

Almost surely, 2^{100001021012112} is an apocalyptic number.

100001021012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100001021012112 is an abundant number, since it is smaller than the sum of its proper divisors (181820038205328).

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

100001021012112 is a wasteful number, since it uses less digits than its factorization.

100001021012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189395873151 (or 189395873145 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 100001021012112 its reverse (211210120100001), we get a palindrome (311211141112113).

The spelling of 100001021012112 in words is "one hundred trillion, one billion, twenty-one million, twelve thousand, one hundred twelve".