2011111201211 has 24 divisors (see below), whose sum is σ = 2400934734000. Its totient is φ = 1679045505984.

The previous prime is 2011111201201. The next prime is 2011111201223. The reversal of 2011111201211 is 1121021111102.

It is not a de Polignac number, because 2011111201211 - 2³⁴ = 1993931332027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011111201201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2875916 + ... + 3506153.

It is an arithmetic number, because the mean of its divisors is an integer number (100038947250).

Almost surely, 2^{2011111201211} is an apocalyptic number.

2011111201211 is a deficient number, since it is larger than the sum of its proper divisors (389823532789).

2011111201211 is a wasteful number, since it uses less digits than its factorization.

2011111201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6382251 (or 6382244 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 2011111201211 its reverse (1121021111102), we get a palindrome (3132132312313).

The spelling of 2011111201211 in words is "two trillion, eleven billion, one hundred eleven million, two hundred one thousand, two hundred eleven".