2211311122011 has 12 divisors (see below), whose sum is σ = 3194162611120. Its totient is φ = 1474185931920.

The previous prime is 2211311121973. The next prime is 2211311122039. The reversal of 2211311122011 is 1102211131122.

It is a happy number.

2211311122011 is a `hidden beast` number, since 221 + 1 + 311 + 122 + 0 + 11 = 666.

It is not a de Polignac number, because 2211311122011 - 2⁹ = 2211311121499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211311122091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1125316 + ... + 2385153.

Almost surely, 2^{2211311122011} is an apocalyptic number.

2211311122011 is a deficient number, since it is larger than the sum of its proper divisors (982851489109).

2211311122011 is a wasteful number, since it uses less digits than its factorization.

2211311122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3580466 (or 3580463 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 2211311122011 its reverse (1102211131122), we get a palindrome (3313522253133).

The spelling of 2211311122011 in words is "two trillion, two hundred eleven billion, three hundred eleven million, one hundred twenty-two thousand, eleven".