220111023211 has 2 divisors, whose sum is σ = 220111023212. Its totient is φ = 220111023210.

The previous prime is 220111023137. The next prime is 220111023227. The reversal of 220111023211 is 112320111022.

It is an a-pointer prime, because the next prime (220111023227) can be obtained adding 220111023211 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220111023211 - 2²⁷ = 219976805483 is a prime.

It is not a weakly prime, because it can be changed into another prime (220111023511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110055511605 + 110055511606.

It is an arithmetic number, because the mean of its divisors is an integer number (110055511606).

Almost surely, 2^220111023211 is an apocalyptic number.

220111023211 is a deficient number, since it is larger than the sum of its proper divisors (1).

220111023211 is an equidigital number, since it uses as much as digits as its factorization.

220111023211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 220111023211 its reverse (112320111022), we get a palindrome (332431134233).

The spelling of 220111023211 in words is "two hundred twenty billion, one hundred eleven million, twenty-three thousand, two hundred eleven".