2011009122 has 48 divisors (see below), whose sum is σ = 4602394368. Its totient is φ = 633618720.

The previous prime is 2011009111. The next prime is 2011009127. The reversal of 2011009122 is 2219001102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2011009095 and 2011009104.

It is not an unprimeable number, because it can be changed into a prime (2011009127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17913 + ... + 65900.

It is an arithmetic number, because the mean of its divisors is an integer number (95883216).

Almost surely, 2^2011009122 is an apocalyptic number.

2011009122 is an abundant number, since it is smaller than the sum of its proper divisors (2591385246).

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

2011009122 is a wasteful number, since it uses less digits than its factorization.

2011009122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83895 (or 83892 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 2011009122 is about 44844.2763571897. The cubic root of 2011009122 is about 1262.2285918162.

The spelling of 2011009122 in words is "two billion, eleven million, nine thousand, one hundred twenty-two".