2120002011 has 16 divisors (see below), whose sum is σ = 3148439200. Its totient is φ = 1409871744.

The previous prime is 2120001941. The next prime is 2120002013. The reversal of 2120002011 is 1102000212.

It is not a de Polignac number, because 2120002011 - 2²⁶ = 2052893147 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 = 2120001984 and 2120002002.

It is not an unprimeable number, because it can be changed into a prime (2120002013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84946 + ... + 107031.

It is an arithmetic number, because the mean of its divisors is an integer number (196777450).

Almost surely, 2^2120002011 is an apocalyptic number.

2120002011 is a deficient number, since it is larger than the sum of its proper divisors (1028437189).

2120002011 is a wasteful number, since it uses less digits than its factorization.

2120002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192395 (or 192389 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2120002011 is about 46043.4795709447. The cubic root of 2120002011 is about 1284.6320639064.

Adding to 2120002011 its reverse (1102000212), we get a palindrome (3222002223).

The spelling of 2120002011 in words is "two billion, one hundred twenty million, two thousand, eleven".