11220202111 has 2 divisors, whose sum is σ = 11220202112. Its totient is φ = 11220202110.

The previous prime is 11220202073. The next prime is 11220202117. The reversal of 11220202111 is 11120202211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11220202111 - 2¹¹ = 11220200063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11220202091 and 11220202100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11220202117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610101055 + 5610101056.

It is an arithmetic number, because the mean of its divisors is an integer number (5610101056).

Almost surely, 2^11220202111 is an apocalyptic number.

11220202111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220202111 is an equidigital number, since it uses as much as digits as its factorization.

11220202111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11220202111 its reverse (11120202211), we get a palindrome (22340404322).

The spelling of 11220202111 in words is "eleven billion, two hundred twenty million, two hundred two thousand, one hundred eleven".