1222111100011 has 2 divisors, whose sum is σ = 1222111100012. Its totient is φ = 1222111100010.

The previous prime is 1222111100009. The next prime is 1222111100099. The reversal of 1222111100011 is 1100011112221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222111100011 - 2¹ = 1222111100009 is a prime.

Together with 1222111100009, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1222111099964 and 1222111100000.

It is not a weakly prime, because it can be changed into another prime (1222111100711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611055550005 + 611055550006.

It is an arithmetic number, because the mean of its divisors is an integer number (611055550006).

Almost surely, 2^{1222111100011} is an apocalyptic number.

1222111100011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222111100011 is an equidigital number, since it uses as much as digits as its factorization.

1222111100011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1222111100011 its reverse (1100011112221), we get a palindrome (2322122212232).

The spelling of 1222111100011 in words is "one trillion, two hundred twenty-two billion, one hundred eleven million, one hundred thousand, eleven".