2011122330 has 32 divisors (see below), whose sum is σ = 5516221824. Its totient is φ = 459685056.

The previous prime is 2011122319. The next prime is 2011122331. The reversal of 2011122330 is 332211102.

It is a super-2 number, since 2×2011122330² = 8089226052449257800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2011122331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4788177 + ... + 4788596.

It is an arithmetic number, because the mean of its divisors is an integer number (172381932).

Almost surely, 2^2011122330 is an apocalyptic number.

2011122330 is an abundant number, since it is smaller than the sum of its proper divisors (3505099494).

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

2011122330 is a wasteful number, since it uses less digits than its factorization.

2011122330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9576790.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2011122330 is about 44845.5385740878. The cubic root of 2011122330 is about 1262.2522767234.

Adding to 2011122330 its reverse (332211102), we get a palindrome (2343333432).

The spelling of 2011122330 in words is "two billion, eleven million, one hundred twenty-two thousand, three hundred thirty".