1122122005 has 4 divisors (see below), whose sum is σ = 1346546412. Its totient is φ = 897697600.

The previous prime is 1122121997. The next prime is 1122122011. The reversal of 1122122005 is 5002212211.

It is a happy number.

1122122005 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5002212211 = 83 ⋅60267617.

It can be written as a sum of positive squares in 2 ways, for example, as 312264241 + 809857764 = 17671^2 + 28458^2 .

It is not a de Polignac number, because 1122122005 - 2³ = 1122121997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1122122005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112212196 + ... + 112212205.

It is an arithmetic number, because the mean of its divisors is an integer number (336636603).

Almost surely, 2^1122122005 is an apocalyptic number.

It is an amenable number.

1122122005 is a deficient number, since it is larger than the sum of its proper divisors (224424407).

1122122005 is an equidigital number, since it uses as much as digits as its factorization.

1122122005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224424406.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1122122005 is about 33498.0895723920. The cubic root of 1122122005 is about 1039.1542695987.

Adding to 1122122005 its reverse (5002212211), we get a palindrome (6124334216).

The spelling of 1122122005 in words is "one billion, one hundred twenty-two million, one hundred twenty-two thousand, five".