2120210011 has 4 divisors (see below), whose sum is σ = 2129468800. Its totient is φ = 2110951224.

The previous prime is 2120210003. The next prime is 2120210051. The reversal of 2120210011 is 1100120212.

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

It is a cyclic number.

It is not a de Polignac number, because 2120210011 - 2³ = 2120210003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2120210011.

It is not an unprimeable number, because it can be changed into a prime (2120210051) 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, 4629051 + ... + 4629508.

It is an arithmetic number, because the mean of its divisors is an integer number (532367200).

Almost surely, 2^2120210011 is an apocalyptic number.

2120210011 is a deficient number, since it is larger than the sum of its proper divisors (9258789).

2120210011 is an equidigital number, since it uses as much as digits as its factorization.

2120210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9258788.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2120210011 is about 46045.7382501356. The cubic root of 2120210011 is about 1284.6740756167.

Adding to 2120210011 its reverse (1100120212), we get a palindrome (3220330223).

It can be divided in two parts, 21202 and 10011, that added together give a palindrome (31213).

The spelling of 2120210011 in words is "two billion, one hundred twenty million, two hundred ten thousand, eleven".