2011122022211 has 2 divisors, whose sum is σ = 2011122022212. Its totient is φ = 2011122022210.

The previous prime is 2011122022207. The next prime is 2011122022237. The reversal of 2011122022211 is 1122202211102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011122022211 - 2² = 2011122022207 is a prime.

It is a super-2 number, since 2×2011122022211² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2011122022211.

It is not a weakly prime, because it can be changed into another prime (2011122022271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005561011105 + 1005561011106.

It is an arithmetic number, because the mean of its divisors is an integer number (1005561011106).

Almost surely, 2^{2011122022211} is an apocalyptic number.

2011122022211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011122022211 is an equidigital number, since it uses as much as digits as its factorization.

2011122022211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2011122022211 its reverse (1122202211102), we get a palindrome (3133324233313).

The spelling of 2011122022211 in words is "two trillion, eleven billion, one hundred twenty-two million, twenty-two thousand, two hundred eleven".