2120011011 has 12 divisors (see below), whose sum is σ = 3063033792. Its totient is φ = 1412973456.

The previous prime is 2120011001. The next prime is 2120011079. The reversal of 2120011011 is 1101100212.

It is a happy number.

It is not a de Polignac number, because 2120011011 - 2⁵ = 2120010979 is a prime.

It is a super-2 number, since 2×2120011011² = 8988893373522484242, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 2120010984 and 2120011002.

It is not an unprimeable number, because it can be changed into a prime (2120011001) 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 11 ways as a sum of consecutive naturals, for example, 8605 + ... + 65681.

It is an arithmetic number, because the mean of its divisors is an integer number (255252816).

Almost surely, 2^2120011011 is an apocalyptic number.

2120011011 is a deficient number, since it is larger than the sum of its proper divisors (943022781).

2120011011 is a wasteful number, since it uses less digits than its factorization.

2120011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61210 (or 61207 counting only the distinct ones).

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

The square root of 2120011011 is about 46043.5773045492. The cubic root of 2120011011 is about 1284.6338817777.

Adding to 2120011011 its reverse (1101100212), we get a palindrome (3221111223).

The spelling of 2120011011 in words is "two billion, one hundred twenty million, eleven thousand, eleven".