100002012111 has 12 divisors (see below), whose sum is σ = 144455173720. Its totient is φ = 66664397520.

The previous prime is 100002012109. The next prime is 100002012139. The reversal of 100002012111 is 111210200001.

It is a happy number.

It is not a de Polignac number, because 100002012111 - 2¹ = 100002012109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100002012093 and 100002012102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100002012211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119725 + ... + 462966.

Almost surely, 2^100002012111 is an apocalyptic number.

100002012111 is a deficient number, since it is larger than the sum of its proper divisors (44453161609).

100002012111 is a wasteful number, since it uses less digits than its factorization.

100002012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601766 (or 601763 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 100002012111 its reverse (111210200001), we get a palindrome (211212212112).

The spelling of 100002012111 in words is "one hundred billion, two million, twelve thousand, one hundred eleven".