11222222020111 has 2 divisors, whose sum is σ = 11222222020112. Its totient is φ = 11222222020110.

The previous prime is 11222222020091. The next prime is 11222222020133. The reversal of 11222222020111 is 11102022222211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11222222020111 - 2³⁹ = 10672466206223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11222222020181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611111010055 + 5611111010056.

It is an arithmetic number, because the mean of its divisors is an integer number (5611111010056).

Almost surely, 2^{11222222020111} is an apocalyptic number.

11222222020111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222222020111 is an equidigital number, since it uses as much as digits as its factorization.

11222222020111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11222222020111 its reverse (11102022222211), we get a palindrome (22324244242322).

The spelling of 11222222020111 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty-two million, twenty thousand, one hundred eleven".