11220100021111 has 2 divisors, whose sum is σ = 11220100021112. Its totient is φ = 11220100021110.

The previous prime is 11220100021087. The next prime is 11220100021139. The reversal of 11220100021111 is 11112000102211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11220100021111 - 2⁵ = 11220100021079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11220100021091 and 11220100021100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11220100021171) 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, 5610050010555 + 5610050010556.

It is an arithmetic number, because the mean of its divisors is an integer number (5610050010556).

Almost surely, 2^{11220100021111} is an apocalyptic number.

11220100021111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220100021111 is an equidigital number, since it uses as much as digits as its factorization.

11220100021111 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 11220100021111 its reverse (11112000102211), we get a palindrome (22332100123322).

The spelling of 11220100021111 in words is "eleven trillion, two hundred twenty billion, one hundred million, twenty-one thousand, one hundred eleven".