2123120211 has 16 divisors (see below), whose sum is σ = 2988384000. Its totient is φ = 1337063328.

The previous prime is 2123120201. The next prime is 2123120231. The reversal of 2123120211 is 1120213212.

It is not a de Polignac number, because 2123120211 - 2⁶ = 2123120147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2123120201) 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, 33471 + ... + 73256.

It is an arithmetic number, because the mean of its divisors is an integer number (186774000).

Almost surely, 2^2123120211 is an apocalyptic number.

2123120211 is a deficient number, since it is larger than the sum of its proper divisors (865263789).

2123120211 is a wasteful number, since it uses less digits than its factorization.

2123120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107098.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2123120211 is about 46077.3286009508. The cubic root of 2123120211 is about 1285.2615880515.

Adding to 2123120211 its reverse (1120213212), we get a palindrome (3243333423).

The spelling of 2123120211 in words is "two billion, one hundred twenty-three million, one hundred twenty thousand, two hundred eleven".