2121200211 has 32 divisors (see below), whose sum is σ = 3228761088. Its totient is φ = 1227133440.

The previous prime is 2121200209. The next prime is 2121200293. The reversal of 2121200211 is 1120021212.

It is not a de Polignac number, because 2121200211 - 2¹ = 2121200209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121200611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 878596 + ... + 881006.

It is an arithmetic number, because the mean of its divisors is an integer number (100898784).

Almost surely, 2^2121200211 is an apocalyptic number.

2121200211 is a deficient number, since it is larger than the sum of its proper divisors (1107560877).

2121200211 is a wasteful number, since it uses less digits than its factorization.

2121200211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3771.

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

The square root of 2121200211 is about 46056.4893473222. The cubic root of 2121200211 is about 1284.8740379288.

Adding to 2121200211 its reverse (1120021212), we get a palindrome (3241221423).

The spelling of 2121200211 in words is "two billion, one hundred twenty-one million, two hundred thousand, two hundred eleven".