2112221122 has 32 divisors (see below), whose sum is σ = 3534969600. Its totient is φ = 938451600.

The previous prime is 2112221113. The next prime is 2112221129. The reversal of 2112221122 is 2211222112.

It is a happy number.

It is a super-2 number, since 2×2112221122² = 8922956136445877768, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2112221096 and 2112221105.

It is not an unprimeable number, because it can be changed into a prime (2112221129) 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, 227797 + ... + 236887.

It is an arithmetic number, because the mean of its divisors is an integer number (110467800).

Almost surely, 2^2112221122 is an apocalyptic number.

2112221122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2112221122 is a deficient number, since it is larger than the sum of its proper divisors (1422748478).

2112221122 is a wasteful number, since it uses less digits than its factorization.

2112221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9342.

The product of its digits is 64, while the sum is 16.

The square root of 2112221122 is about 45958.9068843026. The cubic root of 2112221122 is about 1283.0585067240.

Adding to 2112221122 its reverse (2211222112), we get a palindrome (4323443234).

It can be divided in two parts, 211222112 and 2, that multiplied together give a palindrome (422444224).

The spelling of 2112221122 in words is "two billion, one hundred twelve million, two hundred twenty-one thousand, one hundred twenty-two".