1122001122 has 64 divisors (see below), whose sum is σ = 2617930368. Its totient is φ = 316800000.

The previous prime is 1122001117. The next prime is 1122001183. The reversal of 1122001122 is 2211002211.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1122001098 and 1122001107.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 108372 + ... + 118272.

It is an arithmetic number, because the mean of its divisors is an integer number (40905162).

Almost surely, 2^1122001122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122001122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1308965184).

1122001122 is an abundant number, since it is smaller than the sum of its proper divisors (1495929246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122001122 is a wasteful number, since it uses less digits than its factorization.

1122001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10035.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1122001122 is about 33496.2851970185. The cubic root of 1122001122 is about 1039.1169532178.

Adding to 1122001122 its reverse (2211002211), we get a palindrome (3333003333).

It can be divided in two parts, 112200 and 1122, that multiplied together give a square (125888400 = 11220²).

The spelling of 1122001122 in words is "one billion, one hundred twenty-two million, one thousand, one hundred twenty-two".