1121100220511 has 2 divisors, whose sum is σ = 1121100220512. Its totient is φ = 1121100220510.

The previous prime is 1121100220489. The next prime is 1121100220519. The reversal of 1121100220511 is 1150220011211.

It is a strong prime.

It is an emirp because it is prime and its reverse (1150220011211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121100220511 - 2¹⁸ = 1121099958367 is a prime.

It is a super-2 number, since 2×1121100220511² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1121100220511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121100220519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560550110255 + 560550110256.

It is an arithmetic number, because the mean of its divisors is an integer number (560550110256).

Almost surely, 2^{1121100220511} is an apocalyptic number.

1121100220511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121100220511 is an equidigital number, since it uses as much as digits as its factorization.

1121100220511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 1121100220511 its reverse (1150220011211), we get a palindrome (2271320231722).

The spelling of 1121100220511 in words is "one trillion, one hundred twenty-one billion, one hundred million, two hundred twenty thousand, five hundred eleven".