2211111201211 has 48 divisors (see below), whose sum is σ = 2536721316864. Its totient is φ = 1923653160000.

The previous prime is 2211111201199. The next prime is 2211111201217. The reversal of 2211111201211 is 1121021111122.

It is not a de Polignac number, because 2211111201211 - 2¹⁵ = 2211111168443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211111201217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 358768816 + ... + 358774978.

It is an arithmetic number, because the mean of its divisors is an integer number (52848360768).

Almost surely, 2^{2211111201211} is an apocalyptic number.

2211111201211 is a deficient number, since it is larger than the sum of its proper divisors (325610115653).

2211111201211 is a wasteful number, since it uses less digits than its factorization.

2211111201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7264 (or 7253 counting only the distinct ones).

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

Adding to 2211111201211 its reverse (1121021111122), we get a palindrome (3332132312333).

The spelling of 2211111201211 in words is "two trillion, two hundred eleven billion, one hundred eleven million, two hundred one thousand, two hundred eleven".