1122811 has 2 divisors, whose sum is σ = 1122812. Its totient is φ = 1122810.

The previous prime is 1122761. The next prime is 1122841. The reversal of 1122811 is 1182211.

It is a strong prime.

It is an emirp because it is prime and its reverse (1182211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122811 - 2⁷ = 1122683 is a prime.

1122811 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1122841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561405 + 561406.

It is an arithmetic number, because the mean of its divisors is an integer number (561406).

2^1122811 is an apocalyptic number.

1122811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122811 is an equidigital number, since it uses as much as digits as its factorization.

1122811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32, while the sum is 16.

The square root of 1122811 is about 1059.6277648307. The cubic root of 1122811 is about 103.9366910056.

It can be divided in two parts, 11 and 22811, that added together give a palindrome (22822).

The spelling of 1122811 in words is "one million, one hundred twenty-two thousand, eight hundred eleven".