2120012211 has 4 divisors (see below), whose sum is σ = 2826682952. Its totient is φ = 1413341472.

The previous prime is 2120012203. The next prime is 2120012227. The reversal of 2120012211 is 1122100212.

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

It is not a de Polignac number, because 2120012211 - 2³ = 2120012203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120022211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353335366 + ... + 353335371.

It is an arithmetic number, because the mean of its divisors is an integer number (706670738).

Almost surely, 2^2120012211 is an apocalyptic number.

2120012211 is a deficient number, since it is larger than the sum of its proper divisors (706670741).

2120012211 is an equidigital number, since it uses as much as digits as its factorization.

2120012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706670740.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2120012211 is about 46043.5903356808. The cubic root of 2120012211 is about 1284.6341241601.

Adding to 2120012211 its reverse (1122100212), we get a palindrome (3242112423).

It can be divided in two parts, 21200 and 12211, that added together give a triangular number (33411 = T₂₅₈).

The spelling of 2120012211 in words is "two billion, one hundred twenty million, twelve thousand, two hundred eleven".