10120111211 has 4 divisors (see below), whose sum is σ = 11565841392. Its totient is φ = 8674381032.

The previous prime is 10120111201. The next prime is 10120111217. The reversal of 10120111211 is 11211102101.

10120111211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11211102101 = 2393 ⋅4684957.

It is a cyclic number.

It is not a de Polignac number, because 10120111211 - 2²⁶ = 10053002347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10120111192 and 10120111201.

It is not an unprimeable number, because it can be changed into a prime (10120111217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722865080 + ... + 722865093.

It is an arithmetic number, because the mean of its divisors is an integer number (2891460348).

Almost surely, 2^10120111211 is an apocalyptic number.

10120111211 is a deficient number, since it is larger than the sum of its proper divisors (1445730181).

10120111211 is an equidigital number, since it uses as much as digits as its factorization.

10120111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445730180.

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

Adding to 10120111211 its reverse (11211102101), we get a palindrome (21331213312).

The spelling of 10120111211 in words is "ten billion, one hundred twenty million, one hundred eleven thousand, two hundred eleven".