2112001222 has 16 divisors (see below), whose sum is σ = 3385134720. Its totient is φ = 984763008.

The previous prime is 2112001219. The next prime is 2112001223. The reversal of 2112001222 is 2221002112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112001223) 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, 281238 + ... + 288649.

It is an arithmetic number, because the mean of its divisors is an integer number (211570920).

Almost surely, 2^2112001222 is an apocalyptic number.

2112001222 is a deficient number, since it is larger than the sum of its proper divisors (1273133498).

2112001222 is a wasteful number, since it uses less digits than its factorization.

2112001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570015.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2112001222 is about 45956.5144674833. The cubic root of 2112001222 is about 1283.0139794482.

Adding to 2112001222 its reverse (2221002112), we get a palindrome (4333003334).

The spelling of 2112001222 in words is "two billion, one hundred twelve million, one thousand, two hundred twenty-two".