1122001111111 has 2 divisors, whose sum is σ = 1122001111112. Its totient is φ = 1122001111110.

The previous prime is 1122001111079. The next prime is 1122001111141. The reversal of 1122001111111 is 1111111002211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1122001111111 - 2⁵ = 1122001111079 is a prime.

1122001111111 is a modest number, since divided by 1111111 gives 112200 as remainder.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1122001111091 and 1122001111100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122001111141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561000555555 + 561000555556.

It is an arithmetic number, because the mean of its divisors is an integer number (561000555556).

Almost surely, 2^{1122001111111} is an apocalyptic number.

1122001111111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122001111111 is an equidigital number, since it uses as much as digits as its factorization.

1122001111111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1122001111111 its reverse (1111111002211), we get a palindrome (2233112113322).

The spelling of 1122001111111 in words is "one trillion, one hundred twenty-two billion, one million, one hundred eleven thousand, one hundred eleven".