111222111012211 has 2 divisors, whose sum is σ = 111222111012212. Its totient is φ = 111222111012210.

The previous prime is 111222111012191. The next prime is 111222111012217. The reversal of 111222111012211 is 112210111222111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111222111012211 - 2⁵ = 111222111012179 is a prime.

It is a super-2 number, since 2×111222111012211² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111222111012217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55611055506105 + 55611055506106.

It is an arithmetic number, because the mean of its divisors is an integer number (55611055506106).

Almost surely, 2^{111222111012211} is an apocalyptic number.

111222111012211 is a deficient number, since it is larger than the sum of its proper divisors (1).

111222111012211 is an equidigital number, since it uses as much as digits as its factorization.

111222111012211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 111222111012211 its reverse (112210111222111), we get a palindrome (223432222234322).

The spelling of 111222111012211 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred eleven million, twelve thousand, two hundred eleven".