1000121122 has 64 divisors (see below), whose sum is σ = 2019999744. Its totient is φ = 358655040.

The previous prime is 1000121117. The next prime is 1000121141. The reversal of 1000121122 is 2211210001.

1000121122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1000121099 and 1000121108.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1214803 + ... + 1215625.

It is an arithmetic number, because the mean of its divisors is an integer number (31562496).

Almost surely, 2^1000121122 is an apocalyptic number.

1000121122 is an abundant number, since it is smaller than the sum of its proper divisors (1019878622).

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

1000121122 is a wasteful number, since it uses less digits than its factorization.

1000121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1000121122 is about 31624.6916506707. The cubic root of 1000121122 is about 1000.0403723700.

Adding to 1000121122 its reverse (2211210001), we get a palindrome (3211331123).

The spelling of 1000121122 in words is "one billion, one hundred twenty-one thousand, one hundred twenty-two".