2122222120 has 32 divisors (see below), whose sum is σ = 4776537600. Its totient is φ = 848615488.

The previous prime is 2122222099. The next prime is 2122222127. The reversal of 2122222120 is 212222212.

It is a junction number, because it is equal to n+sod(n) for n = 2122222094 and 2122222103.

It is not an unprimeable number, because it can be changed into a prime (2122222127) 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 7 ways as a sum of consecutive naturals, for example, 156657 + ... + 169663.

It is an arithmetic number, because the mean of its divisors is an integer number (149266800).

Almost surely, 2^2122222120 is an apocalyptic number.

2122222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122222120 is an abundant number, since it is smaller than the sum of its proper divisors (2654315480).

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

2122222120 is a wasteful number, since it uses less digits than its factorization.

2122222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17097 (or 17093 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2122222120 is about 46067.5820941364. The cubic root of 2122222120 is about 1285.0803383586.

Adding to 2122222120 its reverse (212222212), we get a palindrome (2334444332).

The spelling of 2122222120 in words is "two billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty".