1122122000 has 40 divisors (see below), whose sum is σ = 2713295832. Its totient is φ = 448848000.

The previous prime is 1122121997. The next prime is 1122122011. The reversal of 1122122000 is 2212211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12166144 + 1109955856 = 3488^2 + 33316^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 278531 + ... + 282530.

Almost surely, 2^1122122000 is an apocalyptic number.

1122122000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122122000 is an abundant number, since it is smaller than the sum of its proper divisors (1591173832).

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

1122122000 is an equidigital number, since it uses as much as digits as its factorization.

1122122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561084 (or 561068 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1122122000 is about 33498.0894977609. The cubic root of 1122122000 is about 1039.1542680553.

Adding to 1122122000 its reverse (2212211), we get a palindrome (1124334211).

The spelling of 1122122000 in words is "one billion, one hundred twenty-two million, one hundred twenty-two thousand".