2121122234 has 32 divisors (see below), whose sum is σ = 4103568000. Its totient is φ = 797912640.

The previous prime is 2121122221. The next prime is 2121122243. The reversal of 2121122234 is 4322211212.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233009 + ... + 241940.

It is an arithmetic number, because the mean of its divisors is an integer number (128236500).

Almost surely, 2^2121122234 is an apocalyptic number.

2121122234 is a deficient number, since it is larger than the sum of its proper divisors (1982445766).

2121122234 is a wasteful number, since it uses less digits than its factorization.

2121122234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474998.

The product of its digits is 384, while the sum is 20.

The square root of 2121122234 is about 46055.6428030269. The cubic root of 2121122234 is about 1284.8582934067.

Adding to 2121122234 its reverse (4322211212), we get a palindrome (6443333446).

The spelling of 2121122234 in words is "two billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred thirty-four".