2120112011 has 4 divisors (see below), whose sum is σ = 2120300592. Its totient is φ = 2119923432.

The previous prime is 2120111993. The next prime is 2120112023. The reversal of 2120112011 is 1102110212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120112011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120111983 and 2120112001.

It is not an unprimeable number, because it can be changed into a prime (2120111011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76280 + ... + 100293.

It is an arithmetic number, because the mean of its divisors is an integer number (530075148).

Almost surely, 2^2120112011 is an apocalyptic number.

2120112011 is a deficient number, since it is larger than the sum of its proper divisors (188581).

2120112011 is a wasteful number, since it uses less digits than its factorization.

2120112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188580.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2120112011 is about 46044.6740785511. The cubic root of 2120112011 is about 1284.6542819802.

Adding to 2120112011 its reverse (1102110212), we get a palindrome (3222222223).

The spelling of 2120112011 in words is "two billion, one hundred twenty million, one hundred twelve thousand, eleven".