100120111211 has 4 divisors (see below), whose sum is σ = 100357926624. Its totient is φ = 99882295800.

The previous prime is 100120111103. The next prime is 100120111213. The reversal of 100120111211 is 112111021001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112111021001 = 7 ⋅16015860143.

It is a cyclic number.

It is not a de Polignac number, because 100120111211 - 2²² = 100115916907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100120111192 and 100120111201.

It is not an unprimeable number, because it can be changed into a prime (100120111213) 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 3 ways as a sum of consecutive naturals, for example, 118907075 + ... + 118907916.

It is an arithmetic number, because the mean of its divisors is an integer number (25089481656).

Almost surely, 2^100120111211 is an apocalyptic number.

100120111211 is a deficient number, since it is larger than the sum of its proper divisors (237815413).

100120111211 is an equidigital number, since it uses as much as digits as its factorization.

100120111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237815412.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 100120111211 its reverse (112111021001), we get a palindrome (212231132212).

The spelling of 100120111211 in words is "one hundred billion, one hundred twenty million, one hundred eleven thousand, two hundred eleven".